In these file photos Sen. Saxby Chambliss, R-Ga., left, and Gov. Sarah Palin, R-Alaska, are shown. Palin spoke during a run-off election rally at the James Brown Arena for Chambliss this morning in Augusta, Ga.
(AP Photos)Obama has refrained, however, from making a personal appearance in the Peach State.
Obama advisers fear that making an all-out push for a filibuster-proof majority in the Senate would undercut the president-elect's effort to cut a post-partisan image.
The last US Senate runoff in Georgia occurred in 1992 when votes for Libertarian Jim Hudson forced a run-off between Republican Paul Coverdell and Democrat Wyche Fowler. Coverdell won the run-off despite having finished second to Fowler in the initial balloting.
ABC News' Arnab Datta and Rigel Anderson contributed to this report.
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