Donald Trump’s allies have launched a super PAC that will seek to oust Rep. Thomas Massie, a Kentucky Republican who opposed the president’s domestic policy bill and criticized his strikes on Iran’s nuclear facilities.

Thomas Massie voted against the One Big Beautiful Bill Act last month and recently sowed doubt that Iran was an "imminent threat" before Trump chose to strike.

Here’s what to know about Thomas Massie, as Trump launches a campaign to oust one of his loudest intraparty critics from Congress.