Erick Erickson, conservative blogger and CNN contributor.

Conservative blogger Erick Erickson may mount a primary challenge against Sen. Saxby Chambliss (R-Ga.), he said on his radio show last night. 

Erickson, the founder of and a CNN contributor, told listeners that he'd been approached about a campaign and would give it “prayerful consideration.”

Already considered vulnerable, Chambliss has come under fire in recent days for saying he would buck his pledge to never vote for a tax increase.

In a blog post Tuesday, Erickson argued that Chambliss, whom Erickson worked for on multiple campaigns, should face a conservative primary challenge. "Saxby Chambliss has been part of the problem and remains part of the problem," he wrote. 

Erickson was elected to the Macon City Council in 2007. He left the council six months before this term ended to take a gig on an Atlanta radio show. 

Former Georgia secretary of state Karen Handel is also considering a run against Chambliss. Reps. Paul Broun and Tom Price are also potential GOP contenders.