David Frum left the Republican Party following Trump’s victory in the 2024 presidential election. “De-registered as a Republican today,” Frum, a staff writer at The Atlantic, wrote on the social platform X on Wednesday. Via The Hill: Frum, a former speechwriter for then-President George W. Bush, has held on to his party affiliation even as he has become a vocal critic of the former president and his influence on the Republican Party since the 2016 election. In 2016, Frum penned an editorial announcing he was reluctantly supporting Democratic presidential nominee Hillary Clinton and urged his like-minded Republicans to follow suit, writing, “Your hand may hesitate to put a mark beside the name Hillary Clinton.