A new Des Moines Register poll in Iowa shows President Obama trails three of the four Republican candidates in head-to-head match-ups if the election were held today.
The Republican with the biggest lead: Ron Paul, who would defeat Obama by 7 percentage points, 49% to 42%. Rick Santorum leads Obama 48% to 44%. Mitt Romney leads Obama 46% to 44%.The president defeats only Newt Gingrich, 51% to 37%.
“Iowa is considered a swing state in the general election, critical to Obama’s re-election or victory by the Republican nominee.”

