Mitt Romney Promises 'Millions' Of Jobs -- But Offers No Data To Back It Up

Growth.

That's the word, and the concept, that Mitt Romney's campaign is emphasizing in response to the Obama campaign's new attacks on Romney's tax plan.

President Obama is seizing on a new think-tank study that says Romney's plan to cut tax rates for all brackets, lower the corporate rate, close loopholes and keep taxes low on investments, would require him to eliminate deductions and credits that benefit the lower- and middle-class, such as child credits and mortgage deductions.

The Romney campaign is not engaging on the same playing field. When asked Thursday in a conference call how much Rommey's plan might add to the deficit before the economic-growth it projected to create was factored in, along with closing loopholes and cutting spending, the campaign declined to provide specific numbers.

In a sense, the Romney campaign is handicapping itself, because