Ann Romney to critics: 'Stop it. This is hard.'

Amid ongoing criticism over the management of her husband's presidential campaign, Ann Romney on Thursday responded to the critics in an interview on Radio Iowa: "Stop it. This is hard. You want to try it? Get in the ring," she said.

"This is hard and, you know, it's an important thing that we're doing right now and it's an important election and it is time for all Americans to realize how significant this election is and how lucky we are to have someone with Mitt's qualifications and experience and know-how to be able to have the opportunity to run this country," Romney said.