Outspent 15-to-1 in the recent Iowa and New Hampshire campaigns by the centimillionaire Mitt Romney, Mike Huckabee can't be blamed for playing the populist card.
Centimillionaire and former Massachusetts Governor Romney pays such a low rate because most of his income (with the exception of some hefty speaking fees) comes in the form of long term capital gains and corporate dividends, which are currently taxed at an historically low top rate of 15%.