Rep. Phil Gingrey (R-Ga.) will officially announce his Senate campaign on Wednesday, a Republican close to him confirmed to Post Politics.

Gingrey will become the second Republican to join the race for retiring GOP Sen. Saxby Chambliss’s seat. Rep. Paul Broun (R) launched his bid for the seat last month. The Republican close to Gingrey spoke on the condition of anonymity because the person was not authorized to speak on the record.