Asked by Newt Gingrich about an element of Romney's plan dealing with capital gains tax, typically paid by upper-income people who bring in a substantial percent of their income through investments.

"I'm not worried about rich people, they're doing just fine," Romney said.

Raising tax rates for wealthier individuals has been a rallying cry for Democrats in Congress and President Obama as a way to bring in the revenue needed to fund efforts to stimulate the economy.

Even though those tax increases have broad approval from voters, Republican politicians — including the presidential candidates — have been hesitant to alienate that part of their base, choosing instead to focus on the message that no taxes should be raised in the current economic climate.

But Romney is also fighting against attempts by his opponents in both parties to portray him as out of touch and too close to big business.