Mitt Romney's wife says there's enough out there about how much money they've made.

"There are so many things that will be open again for more attack," Ann Romney told ABC's Robin Roberts on "Good Morning America" when asked about releasing tax returns. "And you just want to give more material for more attack. And that's really - that's just the answer."

She added, "And we've given all our people need to know and understand about our financial situation and about how - you know, how we live our life."

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Romney argued that her husband is a good person because he took no salary while he ran the Olympics, made no money as the governor of Massachusetts, and donates 10 percent of his income to the Mormon church.

"That's where his soul is," she said. "That's who he is as a person. He's a very generous person."

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