Republican Rep. Dan Branch formally announced his candidacy for Texas attorney general Tuesday. Branch, who represents the Dallas area, made his plans known at Southern Methodist University.

Branch has served in the Texas House since 2003. He is an attorney who formerly worked for the Texas Supreme Court. He has promised to fight federal regulations and decrease the number of frivolous lawsuits in Texas.

Branch will face fellow Republican and current Railroad Commissioner Barry Smitherman in the GOP primary. State Sen. Ken Paxton is also rumored to be planning a run for the seat.

Of the three, Branch has raised the most money, with $4 million in his campaign war chest.

Republicans are vying for the seat that is soon to be vacated by Attorney General Greg Abbott. Abbott announced earlier this month that he would run for governor. That announcement came on the heels of Gov. Rick Perry’s decision not to run for reelection.

So far, no Democrats have filed for statewide office.

The Associated Press contributed to this report