MARIETTA, Ga. -

Republican Rep. Jack Kingston has picked up the support of another former rival as he looks to consolidate support ahead of a runoff in Georgia's nationally watched Senate race.
    
Rep. Phil Gingrey announced his endorsement at an event in Marietta on Wednesday.  Last week former Georgia Secretary of State Karen Handel -- who finished third to Kingston in the May 20 primary -- endorsed Kingston.

Kingston is battling former Dollar General CEO David Perdue and has already picked up the support of former Secretary of State Karen Handel, who finished third behind Kingston and Perdue in the primary. Gingrey finished fourth.
    
The runoff is set for July 22. The winner will face Democrat Michelle Nunn in November.
    
The race is among a dozen or so nationally that could decide congressional control. Republicans are looking to gain six seats to claim a majority in the Senate and can't afford to lose the Georgia seat.