Readers: At 1:20 p.m. I corrected/updated this post from this morning. My mistake, my apologies. The original, incorrect post remains below the line toward the bottom.

Data from Rasmussen Reports:

In a hypothetical 2012 matchup, President Obama leads Mitt Romney leads by three percentage points, 46% to 43%. If Rick Santorum is the GOP nominee, the president leads 49% to 41%.
———————————————————————————————

 

Data from Rasmussen Reports:

In a hypothetical 2012 matchup, Mitt Romney leads President Obama by two percentage points, 46% to 43%. If Rick Santorum, the winner of Saturday’s Louisiana Republican Primary, is the GOP nominee, the president leads 49% to 41%.

Newt Gingrich, who will campaign in North Carolina this week, loses to the president by 12 points, according to Rasmussen.