Saxby Chambliss, the two-term senior senator from Georgia, could face a Republican primary challenge in 2014.

Activists and donors alike are expressing dissatisfaction with Chambliss for his perceived move to the left on issues like immigration and taxes. And members of Georgia’s House delegation, as reported by Roll Call, like Tom Price, Paul Broun, and Tom Graves, may be considering running against Chambliss in the primary. But GOP and conservative sources say there’s another possible candidate: former secretary of state Karen Handel.