But note again that the largest group excluded from paying income tax because of special tax expenditures are seniors, who get a bigger standard deduction than younger folks and more importantly, special tax treatment for their Social Security benefits.

FORBES: Memo To Mitt Romney: The 47% Pay Taxes Too

And if you look at where the benefit of those tax expenditures go, the vast majority of special provisions and preferential rates are for those with the highest incomes.

WHITEHOUSE: Press Briefing