Sixteen months into his second presidency, Donald Trump may be as unpopular as he's 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 U.S. Representative Thomas Massie, a frequent critic, in a Kentucky nominating contest.
