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RedBox Research · 2026

Delaware Democratic Primary

Survey results

Population: Registered voters. No validated respondent-level likely-voter component was applied, so these estimates describe registered voters, weighted to the modeled likely-electorate composition.

Likely voters: None (not validated).

Weighted responses. Undecided answers are shown separately. A lead is called only when it is larger than the sampling margin widened by a 90% total-error band; otherwise it is within error.

Attorney General

Attorney General ballot choice

Lead called Kathy Jennings leads Undecided by 26.9 points (total error ±19.1 at 90%).

Question details
ResponsePercentInterviews95% marginNote
Kathy Jennings51.4%578±3.4 pp
Undecided24.5%260±3.0 pp
Dwayne J. Bensing13.1%132±2.5 pp
Prefer not to answer2.9%36±1.4 pp
Kathy Jennings51.4%
Undecided24.5%
Dwayne J. Bensing13.1%
Prefer not to answer2.9%

U.S. Senate

U.S. Senator ballot choice

Lead called Chris Coons leads Undecided by 47.0 points (total error ±19.1 at 90%).

Question details
ResponsePercentInterviews95% marginNote
Chris Coons63.8%728±3.3 pp
Undecided16.9%180±2.7 pp
Jeff Appelhans5.7%52±1.8 pp
Mary Louve3.8%30±1.5 pp
Would not vote in this race2.9%30±1.4 pp
Someone else2.6%31±1.3 pp
Chris Coons63.8%
Undecided16.9%
Jeff Appelhans5.7%
Mary Louve3.8%
Would not vote in this race2.9%
Someone else2.6%

State Treasurer

State Treasurer ballot choice

Within error Ted Lauzen and Undecided are within the total error band (+4.3 points; total error ±19.1); no lead is called.

Question details
ResponsePercentInterviews95% marginNote
Ted Lauzen32.8%373±3.3 pp
Undecided28.5%317±3.2 pp
Mike Miller17.7%165±2.7 pp
Michael Alexander Smith12.7%127±2.4 pp
Prefer not to answer3.1%38±1.4 pp
Would not vote in this race2.9%33±1.4 pp
Ted Lauzen32.8%
Undecided28.5%
Mike Miller17.7%
Michael Alexander Smith12.7%
Prefer not to answer3.1%
Would not vote in this race2.9%

Explore responses

genderKathy JenningsUndecidedDwayne J. BensingPrefer not to answerPatty RickmanWould not vote in this raceSomeone elseDid not vote in this race
All respondents51.4%24.5%13.1%2.9%————
Women53.0%25.7%11.4% *—Base too small—Base too small—Base too small—Base too small—Base too small
Men51.1%23.0% *15.0% *—Base too small—Base too small—Base too small—Base too small—Base too small
UnknownWithheld: Base too small————————

* Small sample. A dash means the estimate is withheld because too few interviews support it; the reason is shown. Percentages may not total 100 because of rounding.

Methodology

Preliminary findings from this published snapshot. Later interviews are not included.

Sponsored by A Fight Worth Having (super PAC, FEC C00933085); conducted by RedBox Research, AFWH's polling unit.

Field dates
Sep 13, 2026
Interviews
1,160
Collected by
Text message invitation to a self-administered web survey
Margin of error
±3.3 pts
Design effect
1.30

1.96 × √(design effect × 0.25 ÷ n) × 100, for a 50% result among all respondents

Population
Delaware Democratic primary electorate — revised 17-question poll
Sample frame and selection
  • Delaware 2026 Democratic primary — L2 hybrid deficit augmentation v2 (331,237 eligible records). Voters selected at random (draw sized for 400 completes). 64,054 sent a text invitation.State: DE
  • Delaware 2026 Democratic primary federal statewide and at-large (331,237 eligible records). Voters selected at random (draw sized for 722 completes). 42,671 sent a text invitation.State: DE · Party registration: democrat · Primary party: democrat · Primary type: closed · Office: Federal Democratic primary — statewide and U.S. House at-large · Turnout model: trained_turnout_de_dem_primary2022_forecast20260915
Modes
Text message invitation to a self-administered web survey
Languages
English
Weighting
Iterative proportional fitting (raking), weights bounded between 0.25 and 4. Targets: the expected-turnout composition of the frozen sample design, with race and ethnicity from a probabilistic voter-file model.
Processing and quality
Completed interviews only; partial interviews are excluded.
  • People who opened the survey and stopped before completing it: 795
  • Duplicate submissions: 44

36 estimates are withheld because their base is too small to report.

Weighting targets and weighted sample
VariableCategoryTargetWeighted sample
GenderWomen59.2%59.0%
Men37.9%38.0%
Unknown2.9%3.0%
Age group65+58.7%59.2%
18-293.0%2.5%
30-4410.0%9.8%
45-5410.2%10.2%
55-6418.1%18.2%
Race and ethnicity (voter-file model)Asian or Pacific Islander2.2%2.2%
Black27.1%26.6%
Other2.4%2.4%
White63.6%64.0%
Hispanic4.7%4.7%

Limitations

  • The margin of error (3.3 points at 95% confidence, including the design effect) describes sampling error for a result near 50% among all respondents. Results for subgroups carry larger margins, and question wording, coverage and nonresponse can also affect results.
  • The sponsor is a political committee (a super PAC). Readers should weigh results with that sponsorship in mind.
  • Respondents could be reached only through a telephone number matched to their voter record; voters without a usable number were outside the sample frame.
  • Respondents answered online; people unable or unwilling to complete a web survey are represented only through weighting.
  • 32 respondent(s) had no recorded age group and were not adjusted on that variable.
  • 119 respondent(s) had no recorded race and ethnicity (voter-file model) and were not adjusted on that variable.
  • 36 estimate(s) did not meet the reporting rules (for example, too few respondents) and are withheld.
Questionnaire in the order asked: DE 2026 Democratic Primary v2
  1. How likely are you to vote in the September 15, 2026 Democratic primary election?

    Options: Already voted / Extremely likely / Very likely / Somewhat likely / Somewhat unlikely / Very unlikely / Extremely unlikely / Not sure

  2. For whom did you vote in the Democratic primary for U.S. Senator?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Did not vote in this race / Prefer not to answer

  3. If the Democratic primary for U.S. Senator were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Undecided / Would not vote in this race

  4. For whom did you vote in the Democratic primary for Attorney General?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Did not vote in this race / Prefer not to answer

  5. If the Democratic primary for Attorney General were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Undecided / Would not vote in this race

  6. For whom did you vote in the Democratic primary for State Treasurer?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Did not vote in this race / Prefer not to answer

  7. If the Democratic primary for State Treasurer were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Undecided / Would not vote in this race

  8. How much have you thought about this primary?

    Options: A great deal / Some / A little / Not at all / Not sure / Prefer not to answer

  9. How did you cast your vote in this primary?

    Asked only of respondents who answered Q1 “Already voted”

    Options: In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Not sure / Prefer not to answer

  10. If you vote in this primary, how do you plan to vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Have not decided / Do not plan to vote / Prefer not to answer

  11. Did you vote in the Delaware primary in September 2024? This was before the November general election.

    Options: Yes / No / I was not eligible to vote then / I did not live in Delaware then / Do not remember / Prefer not to answer

  12. What is your age?

    Options: 18 to 29 / 30 to 44 / 45 to 54 / 55 to 64 / 65 or older / Prefer not to answer

  13. What is your gender?

    Options: Male / Female / Nonbinary or another gender / Prefer not to answer

  14. What is the highest level of school you have completed?

    Options: Less than high school / High school graduate / Some college / Vocational or trade school / College graduate / Postgraduate degree / Prefer not to answer

  15. Are you Hispanic or Latino?

    Options: Yes / No / Prefer not to answer

  16. How would you describe your racial background?

    Options: White / Black or African American / Asian or Pacific Islander / Native American or Indigenous / Middle Eastern or North African / Other or multiracial / Prefer not to answer

  17. How sure are you that you will vote in the September 15 primary? Pick a number from 1 to 10.

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: 1 — Definitely will not vote / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 — Definitely will vote / Not sure / Prefer not to answer

Questionnaire in the order asked: DE 2026 Democratic Primary v3
  1. How likely are you to vote in the September 15, 2026 Democratic primary election?

    Options: Already voted / Extremely likely / Very likely / Somewhat likely / Somewhat unlikely / Very unlikely / Extremely unlikely / Not sure

  2. For whom did you vote in the Democratic primary for U.S. Senator?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Did not vote in this race / Prefer not to answer

  3. If the Democratic primary for U.S. Senator were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Undecided / Would not vote in this race

  4. For whom did you vote in the Democratic primary for Attorney General?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Did not vote in this race / Prefer not to answer

  5. If the Democratic primary for Attorney General were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Undecided / Would not vote in this race

  6. For whom did you vote in the Democratic primary for State Treasurer?

    Asked only of respondents who answered Q1 “Already voted”

    Options: Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Did not vote in this race / Prefer not to answer

  7. If the Democratic primary for State Treasurer were held today, for whom would you vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Undecided / Would not vote in this race

  8. How much have you thought about this primary?

    Options: A great deal / Some / A little / Not at all / Not sure / Prefer not to answer

  9. How did you cast your vote in this primary?

    Asked only of respondents who answered Q1 “Already voted”

    Options: In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Not sure / Prefer not to answer

  10. If you vote in this primary, how do you plan to vote?

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Have not decided / Do not plan to vote / Prefer not to answer

  11. Did you vote in the Delaware primary in September 2024? This was before the November general election.

    Options: Yes / No / I was not eligible to vote then / I did not live in Delaware then / Do not remember / Prefer not to answer

  12. What is your age?

    Options: 18 to 29 / 30 to 44 / 45 to 54 / 55 to 64 / 65 or older / Prefer not to answer

  13. What is your gender?

    Options: Male / Female / Nonbinary or another gender / Prefer not to answer

  14. What is the highest level of school you have completed?

    Options: Less than high school / High school graduate / Some college / Vocational or trade school / College graduate / Postgraduate degree / Prefer not to answer

  15. Are you Hispanic or Latino?

    Options: Yes / No / Prefer not to answer

  16. How would you describe your racial background?

    Options: White / Black or African American / Asian or Pacific Islander / Native American or Indigenous / Middle Eastern or North African / Other or multiracial / Prefer not to answer

  17. How sure are you that you will vote in the September 15 primary? Pick a number from 1 to 10.

    Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”

    Options: 1 — Definitely will not vote / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 — Definitely will vote / Not sure / Prefer not to answer

Full disclosure as plain text

Sponsored by A Fight Worth Having (super PAC, FEC C00933085); conducted by RedBox Research, AFWH's polling unit. Population: Delaware Democratic primary electorate — revised 17-question poll (DE). Sample frame: 331,237 voter-file records in universe "Delaware 2026 Democratic primary — L2 hybrid deficit augmentation v2" (State: DE); random draw of 400; 64,054 sent a text invitation. Sample frame: 331,237 voter-file records in universe "Delaware 2026 Democratic primary federal statewide and at-large" (State: DE; Party registration: democrat; Primary party: democrat; Primary type: closed; Office: Federal Democratic primary — statewide and U.S. House at-large; Turnout model: trained_turnout_de_dem_primary2022_forecast20260915); random draw of 722; 42,671 sent a text invitation. Modes: Text message invitation to a self-administered web survey. Languages: English. Interviews completed September 13, 2026 to September 14, 2026. n = 1,160 completed interviews; 106,725 sampled voters were sent a text invitation; margin of error ±3.3 percentage points at 95% confidence including a design effect of 1.3. Weighting: iterative proportional fitting (raking) to gender (F 59.2%, M 37.9%, U 2.9%); age group (65+ 58.7%, 18-29 3.0%, 30-44 10.0%, 45-54 10.2%, 55-64 18.1%); race and ethnicity (voter-file model) (api 2.2%, black 27.1%, other 2.4%, white 63.6%, hispanic 4.7%), from the expected-turnout composition of the frozen sample design, with race and ethnicity from a probabilistic voter-file model; base weights are the inverse of each sampled voter's recorded selection probability within the stratified draw; weights trimmed to 0.25-4.0. Processing: completed interviews only; partial interviews are excluded. Quality checks flagged 795 people who opened the survey and stopped before completing it, 44 duplicate submissions. 59 estimate(s) reported, 36 withheld under the reporting rules. Limitations: The margin of error (3.3 points at 95% confidence, including the design effect) describes sampling error for a result near 50% among all respondents. Results for subgroups carry larger margins, and question wording, coverage and nonresponse can also affect results. The sponsor is a political committee (a super PAC). Readers should weigh results with that sponsorship in mind. Respondents could be reached only through a telephone number matched to their voter record; voters without a usable number were outside the sample frame. Respondents answered online; people unable or unwilling to complete a web survey are represented only through weighting. 32 respondent(s) had no recorded age group and were not adjusted on that variable. 119 respondent(s) had no recorded race and ethnicity (voter-file model) and were not adjusted on that variable. 36 estimate(s) did not meet the reporting rules (for example, too few respondents) and are withheld. Questions, in the order asked (DE 2026 Democratic Primary, version 2): 1. How likely are you to vote in the September 15, 2026 Democratic primary election? [Already voted / Extremely likely / Very likely / Somewhat likely / Somewhat unlikely / Very unlikely / Extremely unlikely / Not sure] 2. For whom did you vote in the Democratic primary for U.S. Senator? [Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 3. If the Democratic primary for U.S. Senator were held today, for whom would you vote? [Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 4. For whom did you vote in the Democratic primary for Attorney General? [Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 5. If the Democratic primary for Attorney General were held today, for whom would you vote? [Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 6. For whom did you vote in the Democratic primary for State Treasurer? [Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 7. If the Democratic primary for State Treasurer were held today, for whom would you vote? [Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 8. How much have you thought about this primary? [A great deal / Some / A little / Not at all / Not sure / Prefer not to answer] 9. How did you cast your vote in this primary? [In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Not sure / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 10. If you vote in this primary, how do you plan to vote? [In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Have not decided / Do not plan to vote / Prefer not to answer] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 11. Did you vote in the Delaware primary in September 2024? This was before the November general election. [Yes / No / I was not eligible to vote then / I did not live in Delaware then / Do not remember / Prefer not to answer] 12. What is your age? [18 to 29 / 30 to 44 / 45 to 54 / 55 to 64 / 65 or older / Prefer not to answer] 13. What is your gender? [Male / Female / Nonbinary or another gender / Prefer not to answer] 14. What is the highest level of school you have completed? [Less than high school / High school graduate / Some college / Vocational or trade school / College graduate / Postgraduate degree / Prefer not to answer] 15. Are you Hispanic or Latino? [Yes / No / Prefer not to answer] 16. How would you describe your racial background? [White / Black or African American / Asian or Pacific Islander / Native American or Indigenous / Middle Eastern or North African / Other or multiracial / Prefer not to answer] 17. How sure are you that you will vote in the September 15 primary? Pick a number from 1 to 10. [1 — Definitely will not vote / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 — Definitely will vote / Not sure / Prefer not to answer] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) Questions, in the order asked (DE 2026 Democratic Primary, version 3): 1. How likely are you to vote in the September 15, 2026 Democratic primary election? [Already voted / Extremely likely / Very likely / Somewhat likely / Somewhat unlikely / Very unlikely / Extremely unlikely / Not sure] 2. For whom did you vote in the Democratic primary for U.S. Senator? [Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 3. If the Democratic primary for U.S. Senator were held today, for whom would you vote? [Jeff Appelhans / Chris Coons / E. No-Trump Hansen / Mary Louve / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 4. For whom did you vote in the Democratic primary for Attorney General? [Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 5. If the Democratic primary for Attorney General were held today, for whom would you vote? [Dwayne J. Bensing / Kathy Jennings / Patty Rickman / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 6. For whom did you vote in the Democratic primary for State Treasurer? [Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Did not vote in this race / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 7. If the Democratic primary for State Treasurer were held today, for whom would you vote? [Ted Lauzen / Mike Miller / Michael Alexander Smith / Someone else / Undecided / Would not vote in this race] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 8. How much have you thought about this primary? [A great deal / Some / A little / Not at all / Not sure / Prefer not to answer] 9. How did you cast your vote in this primary? [In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Not sure / Prefer not to answer] (Asked only of respondents who answered Q1 “Already voted”) 10. If you vote in this primary, how do you plan to vote? [In person on Election Day / Early in person / Absentee ballot, by mail or drop-off / Have not decided / Do not plan to vote / Prefer not to answer] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”) 11. Did you vote in the Delaware primary in September 2024? This was before the November general election. [Yes / No / I was not eligible to vote then / I did not live in Delaware then / Do not remember / Prefer not to answer] 12. What is your age? [18 to 29 / 30 to 44 / 45 to 54 / 55 to 64 / 65 or older / Prefer not to answer] 13. What is your gender? [Male / Female / Nonbinary or another gender / Prefer not to answer] 14. What is the highest level of school you have completed? [Less than high school / High school graduate / Some college / Vocational or trade school / College graduate / Postgraduate degree / Prefer not to answer] 15. Are you Hispanic or Latino? [Yes / No / Prefer not to answer] 16. How would you describe your racial background? [White / Black or African American / Asian or Pacific Islander / Native American or Indigenous / Middle Eastern or North African / Other or multiracial / Prefer not to answer] 17. How sure are you that you will vote in the September 15 primary? Pick a number from 1 to 10. [1 — Definitely will not vote / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 — Definitely will vote / Not sure / Prefer not to answer] (Asked only of respondents who answered Q1 “Extremely likely” or “Very likely” or “Somewhat likely” or “Somewhat unlikely” or “Very unlikely” or “Extremely unlikely” or “Not sure”)

sha256 af088a65deb6b280c79a6a58aefa288a53b1b6c442badbba9ccbea8a0e288c89

Response rates (AAPOR Standard Definitions)
Response rate 1 (RR1)
0.6%
Response rate 3 (RR3)
0.6%
Cooperation rate 1 (COOP1)
21.3%
Refusal rate 1 (REF1)
2.3%
Contact rate 1 (CON1)
2.9%

e = 1.0000: proportional allocation (the default of AAPOR Survey Outcome Rate Calculator 5.1 (2023), List Samples sheet) over the 5,457 cases whose eligibility was settled by contact (5,457 eligible, 0 screened out). Duplicate listings are left out because the frame check removed them from every drawn case. The questionnaire has no eligibility screener, and the Standard Definitions treat an unreached named-list case as eligible when none is required.

Final dispositions of the 186,560 voters drawn
AAPOR codeDispositionCases
1.1Complete interview1,160
2.1121Opened the survey, answered no question17
2.1133Replied STOP to the invitation3,485
2.12Break-off: opened the survey and stopped before completing it795
3.20Invitation delivered, no response98,869
3.219Invitation not delivered2,388
3.23No invitation sent (no textable number, or the number was suppressed)79,835
3.9Invitation sent, no delivery status returned11
RR1 by sample frame
Sample frameDrawnCompletesRR1
Delaware Democratic Primary Poll 2026 — revised-link continuation72,2005230.7%
Delaware 2026 Democratic Primary — L2 hybrid augmentation114,3606370.6%
RR1 by race (voter file)
Race (voter file)DrawnCompletesRR1
Unknown37,1002470.7%
Asian American or Pacific Islander2,65670.3%
Black62,1453180.5%
Hispanic8,350400.5%
Other1,62780.5%
White74,6825400.7%
RR1 by file party
File partyDrawnCompletesRR1
Democrat186,5601,1600.6%
RR1 by age band
Age bandDrawnCompletesRR1
18-2460010.2%
25-343,10020.1%
35-445,300190.4%
45-5420,669720.3%
55-6428,9812040.7%
65+74,3467751.0%
Unknown53,564870.2%

Rates use the formulas of the AAPOR Survey Outcome Rate Calculator 5.1 (2023), List Samples sheet; RR1 counts every drawn voter except duplicate listings.

Weighting appendix: trimming and the shadow estimate

Weight trimming

Bounds: 0.25 to 4.0 (weight relative to a mean base weight of 1).

Weights trimmed: 5 (strategy: final).

Design effect before trimming: 1.371.

Design effect after trimming: 1.299.

The before figure comes from re-running this run's stored inputs; the rerun matched every stored weight.

Data-defect shadow arm (pollster.shadow-arm.ddc.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the data-defect spec covers only general and special elections.

A + recall shadow arm (pollster.shadow-arm.a-plus-recall.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the A + recall spec covers only general and special elections.

A + education shadow arm (pollster.shadow-arm.a-plus-education.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the A + education spec covers only general and special elections.

A + post-ballot partials shadow arm (pollster.shadow-arm.a-plus-partials.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the A + post-ballot partials spec covers only general and special elections.

LV fitted shadow arm (pollster.shadow-arm.lv-fitted.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the LV fitted spec covers only general and special elections.

A + covariate undecided allocation shadow arm (pollster.shadow-arm.undecided-covariate.v1; a pre-registered shadow estimate, not the headline)

Status: not applicable. This is a dem_primary election; the A + covariate undecided allocation spec covers only general and special elections.

Turnout level scenarios (carried beside the estimates; not the headline, no weight changes)

Status: not recorded. This weighting run stores no turnout scenarios; they are recorded on November 3, 2026 general and special polls weighted from 2026-10-05.

AAPOR disclosure: further items
Data collection strategy (AAPOR A1)
A survey of Delaware Democratic primary electorate — revised 17-question poll. Collection: Text message invitation to a self-administered web survey.
Wording shown before the questions (AAPOR A3)

Invitation text (wave 1), 26,715 sent: "Hi {first_name}, We are looking for insight from {community} voters. Take a {survey_minutes} MIN RedBox Research poll: {survey_url} Reply STOP to end; HELP for help."

Invitation text (wave 1), 26,686 sent: "Hi {first_name}, We are looking for insight from {community} voters before {election_day}. Take a {survey_minutes} MIN RedBox Research poll: {survey_url} Reply STOP to end; HELP for help."

Invitation text (wave 1), 26,665 sent: "Hi {first_name}, We are short on responses from {community} voters. Take a {survey_minutes} MIN RedBox Research poll: {survey_url} Reply STOP to end; HELP for help."

Invitation text (wave 1), 26,659 sent: "Hi {first_name}, We are looking for insight from {community} voters on {election_reference}. Take a {survey_minutes} MIN RedBox Research poll: {survey_url} Reply STOP to end; HELP for help."

Words in braces were filled in for each recipient when the text was sent.

Introduction: the frozen questionnaire has no welcome screen, so the survey opened on its first question.

The survey was self-administered on the web: there was no interviewer or AI script.

Sample type (AAPOR A5a)
A probability sample: every voter was drawn at random, with a recorded seed, from the voter-file universe named in the disclosure. No response was generated by AI (no synthetic respondents were used).
Sample frame and its date (AAPOR A5b)
Voters were drawn from the AFWH voter file, built from the Delaware official state voter registration file dated July 8, 2026 (received July 26, 2026), for 186,560 drawn voters.
Coverage (AAPOR A5c)
106,725 of the 186,560 drawn voters (57.2%) had a textable number and were sent an invitation; the other 79,835 could not be reached by text and are counted as not attempted (AAPOR 3.23).
Quotas (AAPOR A5e)
Sample draws were sized to 103 target cells. No interview was stopped or screened out because a cell was full (no case carries a quota-full or screen-out disposition).
Incentives and contact (AAPOR A5i)
No incentive was offered. Contact: a single invitation text; no reminders were sent.
Interviews by frame and mode (AAPOR A8a)
Completed interviews by frame: Delaware Democratic Primary Poll 2026 — revised-link continuation 523; Delaware 2026 Democratic Primary — L2 hybrid augmentation 637. By mode: web 1,160.
Margin of error (AAPOR A8c)
The margin of error is shown because the sample was drawn at random; with a low response rate it holds only as far as weighting corrects nonresponse, which is why leads are judged against the total-error band below.
Quality checks (AAPOR A10)
Each invited voter received a unique survey link; a link yields at most one interview. Quality flags recorded: 44 duplicate submissions. Flags are measured, not used to drop cases: all 1,160 interviews completed by the status date are in the weighted estimates.
Total error (AAPOR A11)
Sampling error is not the only error: published primary-election polls have missed the final margin by an average absolute error of 9.0 points, so a lead is called only when it exceeds a 90% total-error band that adds that non-sampling error to sampling error. For two candidates near 50%, the band is ±19.4 points on the lead, against a sampling-only 95% margin of ±6.6 points.
AI use (AAPOR A12)
AI in data collection: none; no AI interviewer or chatbot was used (Text message invitation to a self-administered web survey). AI in processing: no language model coded, weighted or wrote any published result; every published number and sentence is produced by deterministic code from the recorded responses.
Panel (AAPOR B1)
No panel: respondents were drawn fresh from the voter file for this poll.
Dispositions (AAPOR B5)
Final dispositions and AAPOR outcome rates are listed above: RR1 0.6%, RR3 0.6% (e = 1.0000).
How leads are called

Total-error band for this release: primary. E3X I2: AAPOR state presidential MAE 5.1 (2016, 2020); AAPOR 2018 state polls 4.64; primaries 9 (Silver). sd = MAE*sqrt(pi/2).

Release information

Delaware Democratic Primary Poll 2026 — Initial Results

Version 1 · Published Sep 14, 2026

Release: faac8aef-496f-4320-84c9-dff730fe2b8c

Source checksum: 810a4be2ff4747ac1c5a1a56e188adda864f80ed04ca16a0468c82d79e9fa66f

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