Republican incumbent: Saxby Chambliss
Democratic candidate: Jim Martin
Chambliss, 64, has been a senator since 2003. He was in the U.S. House from 1995 to 2003.
Martin, 63, served in the state House of Representatives from 1983 to 2001. He later was Georgia Commissioner of Human Resources. He was the unsuccessful Democratic nominee for lieutenant governor in 2006.
Real Clear Politics cites polls showing Chambliss ahead, but his lead appears to be shrinking; it's down to six points in the most recent polls.
Here is an MSNBC piece painting Martin as the underdog. But if recent polls are to be believed, he seems, against all odds, to have momentum.
Both of Georgia's senators are Republican. However, there have been several Democratic Senate victories in the not-too-distant past. Georgia has not turned as solidly Republican as some of its neighbors.