The conservative firebrand and former top aide to Sen. Ted Cruz has been a thorn in the side of Trump and Speaker Mike Johnson. Trump had called for a primary challenge against Roy.

Rep. Chip Roy announced a bid for Texas attorney general on Thursday, seeking to replace Ken Paxton in an already crowded Republican primary field. Roy, a Freedom Caucus member, has an antagonistic history with most of his party’s leaders, including House Speaker Mike Johnson and President Donald Trump.

A Republican congressman from Texas, Chip Roy, says he's running for state attorney general. Roy is a prominent member of the House Freedom Caucus, a conservative faction that wields outsize influence in the narrowly divided House.