A defiant Sen. Jim Bunning (R-Ky.) insisted Wednesday afternoon that he is running for re-election in 2010, despite claims by Senate Republican leaders that he has yet to make up his mind.

The latest GOP leader to equivocate on Bunning’s plans was National Republican Senatorial Committee Chairman John Cornyn (Texas), who told Politico in an interview today that his colleague from Kentucky remains unsure on whether he’ll run for another six-year term.

Cornyn’s comments prompted an angry retort from Bunning, who said he informed the NRSC chairman “directly” on Tuesday that he is in fact seeking re-election.

“He’s either deaf, or he didn’t listen very well,” Bunning said.