Daniel
K. Biss
Daniel Biss is the Democratic nominee for Illinois's 9th Congressional District and current Mayor of Evanston.
- sources
- 16
- positions
- 10
- endorsements
- 40
Background
Daniel K. Biss is a Democratic politician currently serving as Mayor of Evanston, Illinois, a position he was elected to in February 2021 and assumed on May 10, 2021. 11 He previously served in the Illinois State Legislature, representing the 17th District in the Illinois House from 2011 to 2013 and the 9th District in the Illinois Senate from 2013 to 2019. [8, 12]
Before entering politics, Biss worked as a mathematics professor at the University of Chicago. 11 He holds a bachelor's degree from Harvard University (1998) and an M.A. and Ph.D. in mathematics from the Massachusetts Institute of Technology (2002). [1, 5] He grew up in Bloomington, Indiana, and resides in Evanston. [1, 12]
Biss is the 2026 Democratic nominee for Illinois's 9th Congressional District, a seat being vacated by retiring incumbent Rep. Jan Schakowsky. [7, 8] He won the Democratic primary in March 2026 and is running in the November 3 general election. 9
At a glance
- Party
- Democratic
- Running for
- U.S. House · District 9, Illinois
- Election
- Nov 3, 2026
- Current office
- Mayor of Evanston
- Website
- danielbiss.com(opens in a new tab)
Where they stand
Each position links to the page it was drawn from. Quotes are verbatim.
Timeline
- Oct 8newsCBS Chicago interviews Biss; he criticizes ICE, calls for phasing out U.S. military aid to Israel
Biss criticized Trump administration immigration enforcement, calling for comprehensive immigration reform. On Israel, he supported phasing out extensive U.S. military aid and using diplomatic leverage to change Israeli government policy. On impeachment, he said Trump had 'obviously' committed impeachable offenses but framed it as a process rather than an explicit call.
Evanston Mayor Daniel Biss and Arlington Heights pastor ... · Oct 8, 2026 (opens in a new tab) - Oct 5endorsementChicago Tribune editorial board endorses Biss for US House in IL-09
The Tribune editorial board endorsed Biss, noting it had backed Laura Fine in the primary but that Biss had 'pivoted back toward the center' for the general election. The endorsement was dated September 29 internally and published October 5.
Editorial: Daniel Biss for US House of Representatives in ... · Oct 5, 2026 (opens in a new tab) - Sep 25newsBiss's planned mayoral resignation date of October 18 reported
Biss was reported as expected to resign as Evanston mayor on October 18 ahead of the congressional election, with the stated purpose of triggering a special election for the remainder of the mayoral term.
Daniel Biss, John Elleson differ on war, ICE, in 9th Congressional District debate · Sep 25, 2026 (opens in a new tab) - Sep 24debateBiss and Elleson face off at first League of Women Voters forum in Skokie
At a forum at Skokie Public Library, Biss and Elleson clashed over immigration, foreign policy, and data centers. Biss supported a national moratorium on data centers of all sizes; Elleson argued they were needed to compete with China. Coverage noted it was likely their only shared debate.
Biss, Elleson make their national scripts local in first congressional ... · Sep 24, 2026 (opens in a new tab) - Sep 22endorsementIllinois Education Association political arm recommends Biss
A September roundup reported that the IEA's political arm recommended Daniel Biss in the 9th Congressional District race.
North Cook Republicans: Here's who's on your Nov. 3 ballot · Sep 22, 2026 (opens in a new tab) - Jun 30newsBiss campaign reports ~$2.95 million raised through June 30
Campaign finance filings showed Biss had raised approximately $2.95 million, including about $2.73 million from individuals and $205,684 from political committees.
Daniel K. Biss — 2026 Illinois's 9th Congressional District ... · Oct 8, 2026 (opens in a new tab) - Mar 17filingDaniel Biss wins Democratic primary for Illinois' 9th Congressional District
Biss won a crowded primary against 14 other candidates with approximately 29.5% of the vote (36,690 votes), becoming the Democratic nominee for the open seat left by retiring Rep. Jan Schakowsky.
Evanston Mayor Daniel Biss and Arlington Heights pastor ... · Oct 8, 2026 (opens in a new tab)
Endorsements
- U.S. Rep. Sean Casten (IL-06) officialListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Robert Garcia officialListed on the campaign page without a date. danielbiss.com
- UNITE HERE Local 1 unionListed on the campaign page without a date. danielbiss.com
- ONE People's Campaign organizationListed on the campaign page without a date. danielbiss.com
- IBEW Local 134 unionListed on the campaign page without a date. danielbiss.com
- End Citizens United organizationListed on the campaign page without a date. danielbiss.com
- U.S. Sen. Elizabeth Warren (Massachusetts) officialListed as an endorser on Biss's campaign page; no date given. danielbiss.com
- U.S. Rep. Mark Pocan officialListed on the campaign page without a date. danielbiss.com
- LiUNA Chicago Laborers District Council unionListed on the campaign page without a date. danielbiss.com
- Planned Parenthood Action Fund organizationListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Chris Deluzio officialListed on the campaign page without a date. danielbiss.com
- Mid-America Carpenters Regional Council unionListed on the campaign page without a date. danielbiss.com
- Citizen Action/Illinois organizationListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Bill Foster (IL-11) officialListed on the campaign page without a date. danielbiss.com
- Illinois AFL-CIO unionListed on the campaign page and in an Illinois AFL-CIO 2026 Primary Election Endorsements document; no specific endorsement date given. ilaflcio.org
- IUOE Local 150 unionListed on the campaign page without a date. danielbiss.com
- GIFFORDS organizationListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Pramila Jayapal (WA-07) officialListed on the campaign page without a date. danielbiss.com
- LCV Action Fund organizationListed as 2026 general-election endorsee for IL-09 on LCV Action Fund endorsements page. lcv.org
- 3.14 Action organizationListed on the campaign page without a date. danielbiss.com
- Illinois Attorney General Kwame Raoul officialListed on the campaign page without a date. danielbiss.com
- Sierra Club organizationListed on the campaign page without a date. danielbiss.com
- Future Forum organizationListed on the campaign page without a date. danielbiss.com
- Illinois Federation of Teachers unionListed on the campaign page without a date. danielbiss.com
- NRDC Action Fund organizationListed on the campaign page without a date. danielbiss.com
- Progressive Change Campaign Committee organizationListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Sarah McBride officialListed on the campaign page without a date. danielbiss.com
- SEIU State Council unionListed on the campaign page without a date. danielbiss.com
- Congressional Progressive Caucus PAC organizationListed on the campaign page without a date. danielbiss.com
- U.S. Rep. Greg Casar officialListed on the campaign page without a date. danielbiss.com
- Chicago Federation of Labor unionListed on the campaign page without a date. danielbiss.com
- J Street organizationListed on the campaign page without a date. danielbiss.com
- U.S. Sen. Tammy Duckworth (Illinois) officialListed as an endorser on Biss's campaign page; no date given. danielbiss.com
- U.S. Rep. Jamie Raskin officialListed on the campaign page without a date. danielbiss.com
- Chicago Tribune editorial board newspaperEndorsed Biss for U.S. House District 9 on October 5, 2026. chicagotribune.com · Oct 5, 2026
- Actors' Equity Association unionAnnounced endorsement on July 9, 2026. actorsequity.org · Jul 9, 2026
- National Nurses United unionAnnounced endorsement on March 6, 2026. nationalnursesunited.org · Mar 6, 2026
- U.S. Rep. Jesús 'Chuy' García (IL-04) officialSupport reported January 27, 2026; also listed on campaign page. evanstonroundtable.com · Jan 27, 2026
- Illinois House Majority Leader Robyn Gabel officialAnnounced support on January 27, 2026. evanstonroundtable.com · Jan 27, 2026
- U.S. Rep. Jan Schakowsky (IL-09) officialSchakowsky endorsed Biss to succeed her in Illinois' 9th Congressional District, saying she was 'proud to endorse him.' shawlocal.com · Jan 7, 2026
Campaign finance
Totals filed with the Federal Election Commission for the 2026 election cycle.
- Raised
- $2.95M
- Spent
- $2.68M
- Cash on hand
- $262K
As of Jun 30, 2026. Filings are periodic, so recent money may not be included yet. ↳ FEC record H6IL09228(opens in a new tab)
Sources 16
- [1] Daniel K. Biss — 2026 Illinois's 9th Congressional District ...(opens in a new tab) Oct 8, 2026
- [2] Evanston Mayor Daniel Biss and Arlington Heights pastor ...(opens in a new tab) Oct 8, 2026
- [3] Editorial: Daniel Biss for US House of Representatives in ...(opens in a new tab) Oct 5, 2026
- [4] Daniel Biss, John Elleson differ on war, ICE, in 9th Congressional District debate(opens in a new tab) Sep 25, 2026
- [5] Biss, Elleson make their national scripts local in first congressional ...(opens in a new tab) Sep 24, 2026
- [6] North Cook Republicans: Here's who's on your Nov. 3 ballot(opens in a new tab) Sep 22, 2026
- [7] 2025-2026 Endorsements(opens in a new tab) Aug 28, 2026
- [8] Illinois AFL-CIO 2026 Primary Election Endorsements(opens in a new tab) Jul 15, 2026
- [9] Actors' Equity Association Endorses Daniel Biss for United States ...(opens in a new tab) Jul 9, 2026
- [10] Biss supports political hardball on maps(opens in a new tab) May 8, 2026
- [11] National Nurses United endorses Daniel Biss for Illinois' ...(opens in a new tab) Mar 6, 2026
- [12] Daniel Biss, Democratic candidate for Illinois 9th ...(opens in a new tab) Feb 20, 2026
- [13] Majority Leader Gabel, Rep. 'Chuy' García endorse Biss for ...(opens in a new tab) Jan 27, 2026
- [14] U.S. Rep. Jan Schakowsky endorses Daniel Biss to succeed her in ...(opens in a new tab) Jan 7, 2026
- [15] Endorsements(opens in a new tab) May 12, 2025
- [16] Issues — Daniel Biss for Congress(opens in a new tab) May 12, 2025