President Obama appears to be losing support in key swing states.

A new USA Today-Gallop poll shows former Sen. Rick Santorum, R-Pa. and former Massachusetts Gov. Mitt Romney beating the president in head to head match-ups.

The poll revealed Santorum would win with 50 percent of the vote to Obama's 45 percent. Romney came in with 48 percent to Obama's 46 percent.

The poll found the president's health care overhaul to be a major problem in these states, especially among independents.

Three of four voters polled in swing states say the president's heath care reforms are unconstitutional.

The national survey, conducted February 20-21, has a four-point margin of error, meaning both GOP candidates are statistically tied with the president.