Defying Trump, G.O.P. Congressmen Hit the Road for DeSantis

Most House Republicans operate under an unspoken but ironclad rule: Do whatever you can to avoid provoking the wrath of former President Donald J. Trump.

But on a recent weekend here in Iowa, just days before the state’s first-in-the-nation nominating contest, two of Congress’s staunchest conservatives were doing just that as they crisscrossed the state with Gov. Ron DeSantis of Florida to make the case for a different party standard-bearer.

At stop after stop on a string of frigid, gray days, Representatives Chip Roy of Texas and Thomas Massie of Kentucky packed into crowded sports bars and coffee shops, casting Mr. DeSantis as a leader with a proven track record of conservative victories. In doing so, they issued a surprisingly blunt review of what they argued were a string of policy failures by the former president — including his inability to repeal and replace the Affordable Care Act, to complete a wall on the U.S. border with Mexico and to rein in the skyrocketing national debt — and an implicit critique of his character.

“The primary reason that I’m supporting Gov. Ron DeSantis for president is that I want my son and my daughter to be able to look up to the occupant of the Oval Office,” Mr. Roy told a packed room of caucusgoers at a sports bar in Ankeny. “Someone they can emulate. Someone that you would be proud to have them follow and look to as a leader.”

Mr. Roy and Mr. Massie have always cut singular figures in Congress. Mr. Roy, a former chief of staff to Senator Ted Cruz of Texas, has emerged as arguably the most influential conservative voice on policy in the House G.O.P. conference. Mr. Massie, a libertarian who is by turns thoughtful and mischievous, forced Congress to return to Washington to take a recorded