New Quinnipiac University/New York Times/CBS Poll

It's pretty much in line with other current polling. See, "In Poll, Obama Is Given Trust Over Medicare."

At the clip, CBS News political analyst Leigh Ann Caldwell breaks it down:

The raw data is here.

And here's the new Fox News poll, from Dana Blanton, "Fox News poll: Race for the White House tightens." Mitt Romney leads Barack Obama 45-44 percent among likely voters, the first time this season that Fox has polled likely/registered voters. The findings are the first Fox poll to also assess the selection of Paul Ryan as running mate.

See also the Los Angeles Times, which has Obama up by 3 nationally, "Obama has slight lead over Romney in new nationwide poll."

And yet more at USA Today, "Poll: As conventions open, a more negative view of politics":

* The enthusiasm gap that boosted Obama in 2008 has turned around this year. Now 53% of Republicans and those who lean Republican say they are more enthusiastic than usual about voting this year, compared with 46% of Democrats and Democratic leaners.

* Obama gets more blame for negative attacks than he did in 2008. Then, 30% accused him of attacking his Republican opponent unfairly; now 44% do. In contrast, 40% say Romney is attacking Obama unfairly, compared with 48% who said that of McCain four years ago.