In a survey taken March 20-26, with a margin of error of +/- 4 points. The swing states surveyed are Colorado, Florida, Iowa, Michigan, Nevada, New Hampshire, New Mexico, North Carolina, Ohio, Pennsylvania, Virginia and Wisconsin.
You can read about it in this USA Today piece by Susan Page
A couple of key takeaways:
Obama leads 51%-42%, just one month after trailing Romney by 2 points.
Romney leads among all men by 1 point, but Obama swamps that with an 18 point lead among all women.
Romney leads 50-38% among men 56 and older.
The biggest change came among women under 50. In mid-February, just under half of those voters supported Obama. Now more than six in 10 do while Romney's support among them has dropped by 14 points, to 30%. The president leads him 2-1 in this group.
Yes, there are still many months until the general election. Romney in theory can turn around his negative approvals, which in other polls now tops 50%. But remember, by the time Mitt left the Governor's mansion in MA, almost 2/3 of the voters disapproved of him. The more people see of Mitt, the less they like him.
Just thought I'd brighten your Sunday.