# Illinois U.S. Senate 2026 ## Snapshot Open seat after Dick Durbin's April 2025 retirement announcement (after 30 years in the Senate, and serving as Senate Democratic Whip 2005–2025). Lt. Gov. Juliana Stratton (D) — Gov. [[J.B. Pritzker]]'s running mate in 2018 and 2022 — won the March 17 Democratic primary with 40.2%, defeating Reps. Raja Krishnamoorthi and Robin Kelly. Republicans nominated former Illinois GOP Chair Don Tracy. Cook rates the general **Solid D** (Sept 23); Stratton begins the cycle as heavy favorite in a state Trump has never won. ## Incumbent (retiring) - **[[Dick Durbin]]** (D) — senator since 1997, Senate Democratic Whip 2005–2025. Announced retirement April 23, 2025. Not running; endorsed Stratton's primary bid. Long career as an institutional-D leader; no pending scandal — a straightforward retirement after five terms. ## Nominees (both set, March 17 primaries) ### Democratic primary winner - **[[Juliana Stratton]]** — Illinois Lt. Governor (2019–present) under Gov. JB Pritzker. Former state representative (IL-05) 2016–2019. First Black woman to serve as Illinois Lt. Governor. Won March 17 primary with **40.2%**, carrying 47 of Illinois's 102 counties. Pritzker-backed and with substantial institutional support; won a three-way race against two sitting U.S. Reps. - Defeated: Rep. Raja Krishnamoorthi (IL-08), Rep. Robin Kelly (IL-02) ### Republican primary winner - **Don Tracy** — Springfield attorney (age 75); former Illinois Republican Party chairman. Won R primary with 39.9% against attorney Jeannie Evans. Raised $2.1M in the primary cycle. ## Ratings history - **2026-09-23 — Cook: Solid D** (Cook print ratings) - 2026-04 — Cook: Likely D - No expected movement; Illinois presidential lean D+9 ## Key dates - 2026-03-17 — Illinois primaries (PASSED) - 2026-11-03 — general election ## Money - Stratton: Pritzker-network fundraising support + traditional state D donor base - Tracy: $2.1M through primary — strong for downstate Illinois R operation but well short of competitive-state norms - Neither national party expected to deploy significant IE resources; Illinois is off the competitive map ## Intel notes - **Stratton's primary win establishes her as a future-generation Illinois D leader**. Worth tracking beyond 2026 for presidential-tier ambitions. - **Two sitting U.S. Representatives losing primaries to a Lt. Gov. is unusual**: Krishnamoorthi had widely been viewed as the frontrunner; the late Pritzker endorsement of Stratton was decisive. Illinois D machine politics case study. - **The Tracy candidacy is placeholder**: Illinois R has not had a credible statewide candidate since Mark Kirk lost his 2016 re-election. - **Tammy Duckworth (the other IL senator) is running for re-election herself in 2028** — Stratton and Duckworth will form a Democratic ticket for a decade-plus if both stay. ## Related KB entities - TBD: JB Pritzker (Concepts/People entry — significant given 2028 presidential chatter) - TBD: Illinois Democratic Party machine (potential Ecosystems/ entry) ## Content leads - **Blog**: Stratton as the next-generation Illinois Democratic leader; the Pritzker machine's legacy pick - **Data**: Illinois 2026 Senate fundraising disparity as a case study in non-competitive state spending economics - Skip merch/[[YouTube]] — low-news-value general election ## Sources - [Wikipedia — 2026 U.S. Senate election in Illinois](https://en.wikipedia.org/wiki/2026_United_States_Senate_election_in_Illinois) - [WTTW — Juliana Stratton Wins Democratic Primary](https://news.wttw.com/2026/03/17/juliana-stratton-wins-us-senate-illinois) - [Business Times — Don Tracy Wins GOP Primary $2.1M Haul](https://www.btimesonline.com/articles/176893/20260318/illinois-senate-race-2026-don-tracy-wins-gop-primary-with-2-1m-haul-faces-juliana-stratton-in-solid-democratic-seat.htm)