The Quinnipiac University Poll, directed by Douglas Schwartz, Ph.D., conducts public opinion surveys in Pennsylvania, New York, New Jersey, Connecticut, Florida, Ohio and the nation as a public service and for research. For more data or RSS feed- http://www.quinnipiac.edu/polling.xml, call (203) 582-5201, or follow us on Twitter.
This is their standard summary. It's on every single survey they do, even if they have the survey in one state and say as such. http://www.quinnipiac.edu/x1296.xml?ReleaseID=1459
The summery can't be counted as evidence that this one in question was done nationwide.