Washington DC - Republican Sen. Saxby Chambliss won't seek re-election to a third term.
The Moultrie lawmaker was elected to the senate in 2002 after defeating Max Cleland.
He'd served eight years in the U.S. House prior to his Senate election.
The Associated Press quotes a Chambliss aide as saying the senator will announce he won't run again.
Chambliss has been a GOP loyalist throughout his career, but he drew criticism from tea party Republicans for his participation in a bipartisan Senate "Gang of Six" focusing on the budget.
The group advocated a mix of tax increases and spending cuts but failed to produce a bargain.