Republican Sen. Bill Cassidy is facing a serious challenge for his seat in Louisiana, five years after he voted to convict Donald Trump on impeachment charges. The contest is being shaped now by Trump’s endorsement of Rep. Julia Letlow and by the fact that state Treasurer John Fleming is also in the race.
That makes Cassidy’s reelection one of the most closely watched Republican fights in Louisiana, with the eventual nominee expected to be heavily favored in the general election. The primary is also structured in a way that could force the race into a second round: if no candidate wins majority support, the top two vote-getters move on to a runoff.
For Cassidy, the race carries the weight of that 2021 vote. He supported conviction after the Jan. 6, 2021, Capitol riot, and that decision still hangs over his campaign as Trump lines up behind Letlow instead of the incumbent senator seeking another term.
That endorsement matters because it gives Letlow the backing of the Republican figure who remains the central force in the party’s primary politics. It also sharpens the math in a field that is not a simple one-on-one challenge. With Cassidy, Letlow and Fleming all competing, a divided vote could keep any of them from reaching a majority on the first round and send the race to a runoff.
What happens next is straightforward and consequential: the top two vote-getters advance if no one clears 50 percent, and the Republican who emerges will be heavily favored in November. Cassidy is trying to hold a seat he has already won before, but the combination of Trump’s backing for Letlow and the presence of Fleming means he cannot assume the first round will settle anything.
Mitt Romney is not the issue in Louisiana, but Cassidy’s fight has the same basic test of party loyalty that now defines Republican primaries across the country. Five years after the impeachment vote, the question is no longer whether that decision matters. It is whether it costs him enough to keep him out of the runoff, or whether he can still make the case that the seat remains his to defend.
