The congressman has been moving towards a Senate run for weeks, hiring staff and letting Republicans in the state know he planned to run, sources tell The Hill.
He'll be the second congressman officially in the race after Broun. Others mulling a bid include Reps. Tom Price (R-Ga.) and Jack Kingston (R-Ga.) and former Georgia Secretary of State Karen Handel (R), who is unlikely to run if Price does since they're political allies. Kingston has also been moving towards a bid, while Price has said he won't make a decision until May.
Many Democrats are hoping Rep. John Barrow (D-Ga.) will run.