Despite Donald Trump's continued influence over his base, his 'revenge tour' against Republican 'apostates' might prove detrimental in upcoming elections. His endorsements have a mixed record of success.

Sixteen months into his second presidency, Donald Trump may ⁠be as unpopular as he has ever been among the American electorate – but his grip on his ⁠core base of Maga voters remains unshaken. That power was on full display over the last two weeks, as Trump ousted a string of fellow Republicans he considered apostates for not showing him enough personal fealty. The president’s revenge tour continued on Tuesday, when a hand-picked loyalist defeated US congressman Thomas Massie, a frequent critic,...