Mr. Musk has fallen out with prominent right-wing Americans who say they are worried that their agenda may be sidelined in favor of his own — and that he is willing to silence them on X.

Elon Musk blasted a segment of the MAGA movement as “contemptible fools” and called for them to be ousted from the Republican Party. The tweet from the Tesla CEO and owner of X, formerly Twitter, was the latest salvo in what some are calling a “civil war” among the far right.