Greensboro, N.C. — Mitt Romney's wife is reinforcing her husband's refusal to make public more of his of tax returns, saying they've put out all that's necessary about the family's finances.

"We've released a year. We're going to release another year," Ann Romney told WRAL News on a campaign stop for her husband in Greensboro Thursday. "That will be two years. We think it's very representative of our tax situation."

That response is one that the likely GOP presidential nominee has repeatedly echoed himself on the campaign trail.

But it's seen as not enough by President Barack Obama's re-election campaign, Democrats and some members of the Republican Party – including Rep. Walter Jones with North Carolina's Congressional delegation – who want Mitt Romney to put the issue of whether he may be hiding something behind him before it begins to weigh more heavily on his candidacy.

The Romneys have said the family gives 10 percent of its income to the Mormon church and that the former Massachusetts governor took no salary during the four years that he held that office.

That, Ann Romney says, should be enough to ease people's concerns about his finances.

But, according to a USA Today/Gallup Poll this week, 54 percent of Americans believe the White House hopeful should release additional years of tax records beyond the 2010 returns he released in January and the 2011 returns that Ann Romney says will be released.

Releasing anything more, Ann Romney says, is dangerous.

"The reason it's dangerous for us is that it just gives the Democrats more fodder to attack us with," she said. "That is the simple reason. As you've seen over the last four weeks, the attacks that have come our way – they've all been financial. They've all been about his business dealings. We just aren't going to give them any more material."

North Carolina was one of four states on Romney's campaign agenda Thursday, in which she focused on sending a message about jobs, the economy and the wealth of average Americans.

She says her husband is running to help average Americans realize the prosperity that has blessed their lives – maybe not the vast wealth that the Romneys have accumulated, but a good job for the millions of people in this country who don't have one.

"No, we are not struggling financially, but the reason Mitt's running is to help people have a brighter economic future," she said. "That's why we're doing it."

"We are very sensitive to those struggling right now. There are millions and millions of Americans that are out of work. It's not right, and we can do better," she added.