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Sen. Bill Cassidy raised $1.65 million in the latest fundraising quarter and has $11 million in cash on hand, his team told POLITICO, as he seeks to ward off a right-wing primary challenge.

The Louisiana Republican is facing several primary challengers on the right fueled by his past criticism of President Donald Trump. Cassidy voted to impeach Trump following the Jan. 6, 2021, attack against the Capitol, a stance that angered the GOP base in Louisiana.

Cassidy has consistently posted slightly higher fundraising numbers than his opponents, John Fleming, the state treasurer and a former congressman, and state Sen. Blake Miguez, but has a significantly larger war chest. Cassidy has raised more than $17 million this cycle to date. Fleming and Miguez haven’t released their latest numbers; they had just over $2 million and $2.5 million in the bank respectively as of the end of September. Rep. Julia Letlow (R-La.) has also flirted with a bid, though sources told POLITICO she is not expected to run; she had $2.3 million in the bank as of the end of September.

The senator will have some help. A pair of super PACs supporting Cassidy’s reelection will show they had $5 million in cash on hand at the end of 2025 and received an additional $2 million in the first two weeks of January, according to a person close to those efforts. The PACs expect to spend between $13 million and $15 million on his behalf.

Cassidy is one of a trio of GOP senators facing tough reelection fights where Trump is declining to endorse a candidate, along with Texas Sen. John Cornyn and Maine Sen. Susan Collins.

Cassidy’s Senate GOP colleagues are backing his reelection. On Thursday, Majority Leader John Thune will host a fundraiser for Cassidy in Baton Rouge that’s expected to bring in $600,000.