Mitt Romney on Thursday accused President Barack Obama and his allies of launching personal attacks and perpetuating lies about him in TV ads. The Republican also rolled out a new commercial of his own that questioned Obama's values and accused the president of waging war on religious freedom.

Obama's campaign disputed that charge.

"I am seeing some of the ads out there. I don't know whatever happened to a campaign of hope and change," Romney said, alluding to Obama's previous campaign slogan, during an interview on Bill Bennett's radio program, "Morning in America." ''I thought he was a new kind of politician. But instead, his campaign and the people working with him have focused almost exclusively on personal attacks ... It's really disappointing."

In the interview, Romney argued that Obama "keeps on just running" ads that various fact-checking organizations have called inaccurate. "They just blast ahead," he said, instead of pulling the ads off the air.