# Thom Tillis Two-term Republican senator from North Carolina, serving 2015 through January 2027. Former Speaker of the NC House of Representatives (2011–2014). Announced retirement in summer 2025 after Trump publicly threatened to endorse a primary challenger following Tillis's vote against a motion to consider the "One Big Beautiful Bill Act." His retirement is a canonical 2025–2026 case study in how Trump loyalty purges have reshaped the institutional Republican Senate caucus. ## Career highlights - NC House of Representatives 2007–2014; Speaker 2011–2014 - U.S. Senate 2015–present — defeated Sen. Kay Hagan (D) in 2014 - Re-elected 2020 against Cal Cunningham (D) in a race Cunningham's campaign imploded over an extramarital affair disclosure - Institutional deal-maker / dealmaker brand: bipartisan negotiator on gun reform (2022), immigration (2024), and infrastructure - Member of the "Gang of" bipartisan deal groups on multiple occasions ## 2026 cycle Not running. Announced retirement summer 2025. The Republican nomination went to RNC Chair Michael Whatley (Trump-endorsed) by default; Cooper (D) is favored to flip the seat. Tillis's post-Senate plans as of 2026-04-23 have not been announced. See [[NC-Sen-2026]] for full race context. ## Ideological positioning - Institutional-R / dealmaker archetype — the exact profile Trump has systematically purged from the Senate caucus this cycle - Voted with Trump most of the time on judicial nominations and taxes, but broke regularly on spending, immigration, and select high-profile procedural votes - The "One Big Beautiful Bill Act" procedural vote was the trigger, but Trump's frustration with Tillis had built over multiple 2025 negotiations - Part of a 2025–2026 cluster of institutional-R retirements also including [[Mitch McConnell]] (KY), [[Joni Ernst]] (IA), [[Steve Daines]] (MT), [[Cynthia Lummis]] (WY) ## Related - [[NC-Sen-2026]] - [[MAGA]] — frame for the primary-threat mechanism that forced the retirement - [[Mitch McConnell]] — similar institutional-R profile, similar retirement