Are voters most concerned about terrorism, health care or the deficit? The answer is "none of the above."
CBS News' exit polls found that 77 percent of Republicans voting in seven Super Tuesday states said that rising gas prices were an important factor in their vote. Gas prices have risen nearly 50 cents a gallon in just over two months.
The current national average for a gallon of regular gas is $3.76, but some analysts predict that gas could rise to $5 by the summer.
GOP candidate Newt Gingrich claimed that his plan for expanded drilling would make gas $2.50 a gallon, but apparently that promise only worked in Georgia, the only state he won on Tuesday.
Republicans have been busy blaiming President Obama for gas prices, even though prices are determined by oil speculators on the market.