Senate Republicans who voted to convict former President Trump in 2021 face a shrinking cohort as Bill Cassidy of Louisiana loses a primary backed by the former president. Cassidy’s defeat leaves only two of the seven convicts—Susan Collins of Maine and Lisa Murkowski of Alaska—potentially alive in Washington next year.

The 2021 impeachment concluded with an acquittal, yet the vote left a mark on Republican ranks. Four of the seven voted senators—Richard Burr, Patrick Toomey, Ben Sasse, and Mitt Romney—either retired or shifted careers, reflecting Trump’s lingering influence over GOP strategy and the cost of dissent for legislators who stand against the former president who continues to shape decisions.

Cassidy’s loss signals a broader shift: Trump‑backed challengers can unseat even those who opposed him, and the remaining convicts face tougher reelection battles. Collins faces a competitive general, while Murkowski, who survived a Trump‑backed foe in 2022, must now defend a razor‑thin margin in a state that has grown increasingly Republican in the midwest politics.

With only two Republican senators left who voted to convict Trump, the Senate’s ideological balance could tilt further toward the former president’s agenda. Investors watching GOP policy shifts may reassess support for legislation tied to federal spending and election reform, as the party realigns under a new leadership that tolerates less dissent policy today.