The poll, taken March 8-11 on the heels of reports that 227,000 jobs were added to the U.S. economy in February, indicates that Obama’s rating has risen by 2 percentage points during the past month. The percentage of Americans who disapprove of the Democratic president was 48 percent, down from 49 percent in February…

In a survey of registered voters, Obama led Romney 52 to 41 percent in a head-to-head match-up, nearly double the margin from February. Obama led Santorum 52 to 42 percent, and Gingrich 54 to 37 percent.

Obama’s fortunes have been improved by a drum beat of positive economic news. The unemployment rate held steady at 8.3 percent in February and was buoyed by three straight months of jobs growth.