WASHINGTON — Republican Rep. Chip Roy, an outspoken fiscal conservative known for his willingness to challenge party leadership, announced Thursday that he is running for Texas attorney general.

Now in his fourth term, Roy is a prominent member of the House Freedom Caucus, and was a key player this summer in the negotiations around President Trump's big tax bill. But the lawmaker's relationship with Trump has been complicated at times.

Roy enters an increasingly crowded Republican primary field to succeed Attorney General Ken Paxton, who is challenging Sen. John Cornyn in the Republican primary next year.

Roy served as Paxton's second-in-command in the attorney general's office before winning election in 2018. Roy was also the most prominent member of his party to call for Paxton to res

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