Sen. Saxby Chambliss (R-GA) speaks to members of the media after a hearing in November 2012. (Photo by Alex Wong/Getty Images)
Sen. Saxby Chambliss (R-GA) speaks to members of the media after a hearing in November 2012. (Photo by Alex Wong/Getty Images)

Sen. Saxby Chambliss (R-Ga.), one of the Republicans most vulnerable to a conservative primary challenge, will retire in 2014 rather than seek a third term.

Chambliss denied in a statement Friday morning that the potential primary was a factor in his decision, saying he was confident he would have won re-election.