Ann Romney called it a "myth" that her husband has veered to the right over the years, insisting there is little difference between the moderate figure who was governor of Massachusetts and the conservative who is running for president.

"It's true there have been a few changes, but really not very many," Ann Romney told the Morning Call of Allentown, Pa., in an interview. "They like to create this myth and he really has been very consistent."

She blamed the Obama campaign and the news media for the perception that Mitt Romney is a business tycoon with little understanding of the concerns of most Americans.

"It's a billion dollars spent on that narrative, on negative ads," she said. "A media that is not particularly friendly, that wants to promote that narrative as well."