Polling Average
30%25%20%15%10%5%0%
23.5%
15.4%
13.3%
7.1%
IL-09 Democratic nominee?
$515.0K
MAR 24, 2026Primary Election
Party selects its nominee.
Overview
Current roleFormer State Senator
PartyDemocratic
Political ideologyProgressive Democrat
Age48 years old (Aug 27, 1977)
GenderMale
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LocationIllinois
BackgroundPolitician
EducationHarvard University BA in mathematics (1998), summa cum laude
Notable personal detailsDaniel Klmn Biss is an American mathematician and Democratic politician who has served as mayor of Evanston, Illinois since 2021. He previously represented the 17th District in the Illinois House (20113) and the 9th District in the Illinois Senate (201319). Before elected office, he was an assistant professor of mathematics at the University of Chicago. He has been a candidate for Illinois's 9th congressional district.
SourcesShowHide
fec.govchicago.suntimes.comilga.goven.wikipedia.orgwikidata.orgil9.orghistory.house.govelections.il.govvote-usa.orgdanielbiss.comdbpedia.orgelections.alaska.govuploads.rov.sbcounty.govupload.wikimedia.orgstatic1.squarespace.comsos.iowa.govlakecountyil.govvote.franklincountyohio.govreddit.comwcbu.orgrblandmark.comwglt.orgmyjournalcourier.comdailynorthwestern.comnprillinois.orgnationalnursesunited.orgdemocracynow.orgjustfacts.votesmart.orglcv.orgnrdcactionfund.orggivegreen.comarchive.phpeoplesaction.orgtimesofisrael.comabc7chicago.comevanstonnow.comevanstonroundtable.comweareprogressives.orgbroadwayworld.compolitico.comfox32chicago.comchicagotribune.comibjonline.compatch.comballotpedia.orgfacebook.cominstagram.comdeveloper.ballotpedia.orgde.wikipedia.orglegislation.ballotpedia.orgdocquery.fec.govdata.ballotpedia.orgcdn.ballotpedia.orges.wikipedia.orgcommons.wikimedia.orgcreativecommons.orgvotesmart.org
Positions
LiberalConservative
Economy & Taxes
Supports replacing Illinois' flat income tax with a graduated (progressive) income tax, advocates additional taxes on high-end financial transactions and taxing wealthier retirement income while pursuing property-tax reform to reduce burdens on middle- and working-class homeowners.
Healthcare
Supports a national single-payer health system such as Medicare for All and advocates for universal coverage. Campaign materials and past statements commit to pursuing single-payer policies and protecting coverage for people with pre-existing conditions.
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Immigration & Border
Supports limits on federal immigration enforcement at the local/state level and policies to protect immigrant communities; has condemned ICE/Border Patrol raids in Evanston and directed local actions to investigate and shield residents. Has previously co‑sponsored state legislation (the TRUST Act) to restrict local cooperation with federal immigration enforcement and to create protected spaces for immigrants.
Abortion & Reproductive Rights
Supports legal access to abortion and has a record of championing and bolstering abortion rights in Illinois; positions and endorsements describe him as a pro-choice, progressive defender of reproductive access.
Climate & Energy
Supports aggressive federal action to confront the climate crisis, including investing in clean energy, holding polluters accountable, and advancing building- and community-level measures to reduce emissions. Emphasizes transitioning to clean energy while prioritizing jobs, affordability, and public health.
Public Safety & Guns
Supports broad, progressive gun-safety measures including repeal of the Second Amendment, universal background checks, a federal assault-weapons ban and limits on high-capacity magazines, expanded red-flag laws, safe-storage requirements, and ending legal immunity for the gun industry.
News
AINews Summary
Last updatedMar 14, 2026
Daniel Biss is running in the crowded Democratic primary for Illinois’s 9th Congressional District to replace retiring Rep. Jan Schakowsky, with the March 17, 2026 primary approaching. He has drawn attention as a leading contender and for refusing to accept donations from AIPAC, an issue that has become a flashpoint in the race. The campaign debate has also focused on affordability, including the cost of health care and housing.
fec.gov+56
Articles
SLShaw Local Enewspapers5 months ago
Most Democrats in 9th Congressional race cite affordability as top issue
Positive
CTChicago Tribune5 months ago
Big money, national issues fuel Illinois 9th district Dem primary
Neutral
PPOLITICO5 months ago
AIPAC’s cash complicates crowded Illinois primaries
Neutral
PPOLITICO5 months ago
House Democrat withdraws endorsement in Chicago-area race over AIPAC funding
Positive
Polls
IL-09 Democratic nominee?
Aggregation source: FiftyPlusOne
Fundraising
Latest report: Cycle 2026Total raisedCash on hand
$2.9M
$2.2M
$1.5M
$736.7K
$0
2026
LatestYear
Total raised
Cash on hand
Total spent
Burn rate
Cycle 2026
$2.9M
$262.1K
$2.7M
$149.1K
Source: FEC
New updates coming soon
We're monitoring and will update when new data impacts the race.
- Endorsements