David Perdue to get a boost from his best-known backers

Rep. Jack Kingston may have sucked up

most of the

in the July 22 GOP Senate runoff. But his rival, businessman David Perdue, is about to get a boost from his two best-known backers.

Perdue's first-cousin, former Gov. Sonny Perdue, will soon be featured on a TV ad boosting his candidacy, as well as campaign stops in the hours before the vote. And Herman Cain, who hosted a fundraiser for Perdue on Thursday night, will soon be featured on radio ads.

It's a way to counteract the wave of establishment and tea party support that's enveloped Kingston's campaign, including the endorsements of former Secretary of State Karen Handel and Rep. Phil Gingrey, who finished third and fourth in May's primary vote.

Perdue said the ad will be the public manifestation of the ex-governor's behind-the-scenes effort on his behalf.

"Sonny has been working the phones," said David Perdue, a former Fortune 500 chief executive. "He's been a great supporter, a great adviser and a great mentor in the process. He's been very involved in the campaign."

Cain's radio spots, too, are expected to start running next week. And he was the main attraction at a reception at Eagle's Landing Country Club, where AJC colleague Nicholas Fouriezos counted about 50 donors. Among them was Ginny Heugle of East Cobb, who said she factored Cain's backing when making her pick.

"I was already a supporter," she said. "But it certainly helped when Herman Cain supported him."