Rep. Jack Kingston (R-Ga.) has won the backing of former rival Rep. Phil Gingrey (R-Ga.) in the runoff election for Georgia's GOP Senate primary.
Kingston is taking on businessman David Perdue (R) in the runoff on July 22.
Gingrey, who finished fourth with 10 percent of the vote, joins third-place finisher and former Georgia Secretary of State Karen Handel (R) in endorsing Kingston. Handel won 22 percent of the vote in May.
"Through the years Jack Kingston and I have been colleagues — and more importantly friends — he has been a relentless advocate for our shared conservative principles," Gingrey said in a statement released by Kingston's campaign. "Today I am proud to announce my support for Jack to be our next United States senator from the great state of Georgia."
Kingston has had some momentum since May. He's locked in more endorsements and led Perdue in the first poll of the race.
The winner of the July runoff will face former charity executive Michelle Nunn (D) in the fall.