Sen. Saxby Chambliss, R-Ga., gestures as he speaks during an election-night party Tuesday, Dec. 2, 2008 in Atlanta. Chambliss defeated Democrat Jim Martin in a run off. (AP Photo/John Bazemore)

Sen. Saxby Chambliss, R-Ga., center, introduces his grandson John Baker to supporter Oscar Poole during an election-night party Tuesday, Dec. 2 2008 in Atlanta. Chambliss is in a run off with Democrat Jim Martin. (AP Photo/John Bazemore)

Sen. Saxby Chambliss, R-Ga., speaks with reporters as his grandson John Baker looks on during an election-night party Tuesday, Dec. 2, 2008 in Atlanta. Chambliss is in a run off with Democrat Jim Martin. (AP Photo/John Bazemore)

Sen. Saxby Chambliss, R-Ga., arrives with his grandson John Baker for an election-night party Tuesday, Dec. 2 2008 in Atlanta. Chambliss is in a run off with Democrat Jim Martin. (AP Photo/John Bazemore)

Oscar Poole, of East Ellijay, Ga., looks over a campaign flyer as he waits for an election-night party for incumbent Sen. Saxby Chambliss, R-Ga., to begin in Atlanta, Tuesday, Dec. 2, 2008. Chambliss is in a run off with Democrat Jim Martin. (AP Photo/John Bazemore)

U.S. Sen. Saxby Chambliss, R-Ga, right, applauds Alaska Gov. Sarah Palin, left, speak during a campaign stop for , Monday, Dec. 1, 2008 in Savannah, Ga. Chambliss and Democratic challenger Jim Martin are in a tight race in a Tuesday runoff that will shape Democrats' hold on power in Washington. (AP Photo/Stephen Morton)

In this April 28, 2008 file photo, Sen. Saxby Chambliss, R-Ga., speaks during a news conference at the state capitol in Atlanta. Once considered a safe bet for re-election to a second term, Chambliss suddenly appears vulnerable under a wave of anti-incumbent frustration and economic turmoil. (AP Photo/John Amis, File)

Sen. Saxby Chambliss, R-Ga., left, and Sen. Kent Conrad, D-N.D., right, both members of the bipartisan coalition of Senators know as the "Gang of Ten," discuss their energy plan, Friday, Aug. 1, 2008, during a news conference on Capitol Hill in Washington. (AP Photo/Susan Walsh)

Members of the bipartisan coalition of Senators, known as the "Gang of Ten", from left, Sen. Saxby Chambliss, R-Ga., Sen. John Thune, R-S.D., Sen. Kent Conrad, D-N.D., Sen. Ben Nelson, D-Neb., Sen. Blanche Lincoln, D-Ark., Sen. Bob Corker, R-Tenn., Sen. Mary Landrieu, D-La., Sen. Johnny Isakson, R-Ga., and Sen. Mark Pryor, D-Ark., discuss their energy plan during a news conference, Friday, Aug. 1, 2008 on Capitol Hill in Washington. (AP Photo/Susan Walsh)

Members of the bipartisan coalition of senators known as the "Gang of Ten" discuss their energy plan during a news conference on Capitol Hill in Washington, Friday, Aug. 1, 2008. From left are, Sen. Saxby Chambliss, R-Ga., Sen. Kent Conrad, D-N.D., Sen. John Thune, R-S.D., and Sen. Ben Nelson, D-Neb. (AP Photo/Susan Walsh)