New Jersey Gov. Chris Christie’s presence on the GOP ticket wouldn’t be enough to beat President Obama in the Garden State, according to a new poll.

Mitt Romney trails President Obama among New Jersey voters in the Quinnipiac University poll released Wednesday, 49 percent to 43, even with Christie as his running mate.

Without Christie, Romney would trail Obama 49 percent to 39.

“Gov. Christopher Christie says he'd be a terrible vice president, and we may never find out,” said Maurice Carroll, director of the Quinnipiac University Polling Institute in a statement. “Putting him on the ticket helps the Republicans a little, but not enough, in New Jersey. If the measure of a vice presidential pick is carrying his or her home state, then Gov. Christie comes up short.”

Some on the right have speculated that Christie, a Romney supporter, could be the former Massachusetts governor’s vice presidential pick, if he secures the Republican nomination. Christie has said that he is open to the possibility but that he doesn’t think it’s likely.

Despite the poll’s findings, Christie remains popular in his home state, with an approval rating of 55 percent versus 38 percent who disapprove of the job he’s doing.

President Obama also has a positive approval rating in New Jersey, with 51 percent saying they approve of him against 45 percent who disapprove. A nearly identical margin said the president deserves a second term in the White House.

Obama would defeat Rick Santorum and Newt Gingrich by more than 20 percent each, according to the poll.