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Molitico Research · Illinois · 9th District

IL-09 Democratic Primary Poll

Daniel Biss leads with 31%, but 21% are undecided. Turnout among low-propensity voters will decide the race, and accountability and ICE oversight are what move them.

31%
back Daniel Biss on the first ballot
21%
are still undecided
59%
say AIPAC ties make them less likely to support a candidate

Fielded February 15–20, 2026 · 638 IL-09 Democratic Primary Electorate · ±3.9% · Sponsored by CAIR Action

Initial Vote Choice

Mayor Daniel Biss commands a substantial lead but a large proportion of primary voters remain undecided less than a month out from primary day.

Chart data
CategorySupport %
Daniel Biss31.0%
Laura Fine13.9%
Kat Abughazaleh12.9%
Mike Simmons8.2%
Bushra Amiwala6.5%
Phil Andrew3.7%
Hoan Huynh1.6%
Jeff Cohen0.6%
Sam Polan0.1%
Undecided21.3%

Top Issues

Most voters used both choices indicating high engagement. Top issues are centered on power and accountability.

Chart data
CategorySelected %
President has too much unchecked power50.5%
Billionaires/corps have too much power42.5%
ICE abusing power without accountability42.1%
Inflation and cost of living too high20.5%
Economy headed in wrong direction9.5%
Worried about job and future income8.8%
Healthcare unaffordable8.3%

Impact of AIPAC/Pro-Israel Lobby Ties

A clear majority say ties to AIPAC or the pro-Israel lobby make them less likely to support a candidate for Congress.

Chart data
ResponsePercent
Less Likely59.3%
Neither30.2%
More Likely10.5%

Israel/Palestine: Strongly Agree Statements

Voters show high engagement on human rights issues, with 41.4% strongly agreeing Israel is committing genocide.

Chart data
CategoryStrongly Agree %
Israel is committing genocide41.4%
Israeli govt is extremist35.1%
Israel is an apartheid state31.5%
Sympathize more with Palestinians30.2%
Palestinian movement part of larger freedom movement20.9%
Israel is only Mideast democracy12.4%
Israel abiding by international law8.8%
Sympathize more with Israelis4.7%

Methodology

Sponsor
CAIR Action
Field dates
February 15–20, 2026
Population
IL-09 Democratic Primary Electorate
Sample size
638
Margin of error
±3.9% at 95% confidence

This poll was conducted from February 15–20, 2026, among 638 likely Democratic primary voters in Illinois' 9th Congressional District. The margin of error is ±3.9% at 95% confidence. Results were weighted by Age, Gender, Race, and Primary Turnout Score to reflect the IL-09 Democratic primary electorate.

Weighted sample composition
DemographicGroupShare
Weighting FactorsAgeWeighted
Weighting FactorsGenderWeighted
Weighting FactorsRaceWeighted
Weighting FactorsPrimary Turnout ScoreWeighted

Sample modeled and weighted to the IL-09 Congressional District Democratic primary electorate. The election is scheduled for March 17th, 2026.

Released by Molitico Research with the sponsor's permission. Reporters can cite these results with attribution to the sponsor and Molitico.

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A wide-open race. Rasoul gains 12.3 points once voters learn about the candidates, closing the gap with Perriello, and 20% remain undecided.

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