Trump's Primary Revenge Tour Dominates GOP, But Independent Voter Collapse Threatens Fall Midterms

President Trump wrapped up a three-week political purge of Republican dissenters with the defeat of Representative Thomas Massie in Kentucky's primary — capping the most expensive House primary race in recent memory and cementing Trump's iron grip on GOP base voters a full decade after his first presidential nomination. The sweep also included Senator Bill Cassidy of Louisiana, who voted to convict Trump in his 2021 impeachment trial, finishing with a humiliating 25% in his re-election bid and failing to advance to a runoff. Brad Raffensperger, the Georgia secretary of state who famously refused Trump's request to 'find' votes in 2020, similarly failed to advance in the governor's race there.

The purge began in Indiana, where Trump recruited challengers who ousted five state senators who had resisted his pressure to redraw congressional maps more favorably for Republicans. In Kentucky, the incoming senator replacing the retiring Mitch McConnell will almost certainly be staunch Trump ally Representative Andy Barr. In Georgia and Alabama, Senate runoff candidates are uniformly pro-Trump. Defense Secretary Pete Hegseth even detoured from overseeing the ongoing war in Iran to campaign against Massie in northern Kentucky — a sign of just how personally invested Trump was in the race. Trump filmed an Oval Office video calling Massie 'the worst congressman in the history of our country,' a phrase he reportedly repeated twice within 30 seconds.

Emboldened by the results, Trump on Tuesday endorsed Ken Paxton — the MAGA-aligned Texas attorney general — over incumbent Senator John Cornyn in the Texas Senate runoff, dismissing months of lobbying from Senate Republican leaders who fear Paxton could cost the party the seat. Senate Republicans fumed, and Cassidy promptly joined Democrats in voting to force Trump to seek congressional authorization for the Iran war.

The central tension hanging over all of it: Trump's 82% approval rating among Republicans is nearly a mirror image of his 26% approval among independent voters — a number that actually undercuts Joe Biden's 28% independent approval recorded just before he dropped out of the 2024 race following his debate collapse. Republican strategist Mike Madrid compared candidates aligning with Trump to 'tying yourself to the railings of the Titanic,' while Trump ally Michael Caputo described the grassroots loyalty as unlike anything seen in 40 years of politics. Massie, in his concession speech, took direct aim at Trump's priorities, contrasting a planned White House ballroom styled after Roman Empire architecture against gas prices approaching $5 a gallon.