Georgia Senator Saxby Chambliss is theoretically very vulnerable to a primary challenger in 2014: it’s just a question of whether any of the folks interested in taking him on can run a strong enough campaign to take advantage of that vulnerability.

Only 38% of Republican primary voters say they want Chambliss to be their nominee next year, compared to 43% who would prefer someone more conservative. But Chambliss stomps most of the people who’ve shown the most interest in taking him on. He leads Congressman Paul Broun by a 57/14 margin in a head to head, has a 50/22 advantage over Congressman Tom Price, and leads former Secretary of State Karen Handel 52/23.

By far and away the Republican who would pose the greatest threat to Chambliss in a primary, if he changed his mind about running, is Herman Cain. Cain would lead Chambliss 50-36 in a hypothetical match up. Cain has a 68/20 favorability rating with GOP primary voters, which compares quite favorably to Chambliss’ 45/36 approval spread. Other long shot candidates we tested against Chambliss were Allen West, who trails 47/26, and Erick Erickson who trails 51/22.

Chambliss is extremely weak with Republicans describing themselves as ‘very conservative.’ 61% of them would like to replace him, compared to only 23% who would like to see him nominated again. He would trail Cain 68/19 with that group of voters.

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