Quinnipiac: Romney 48, Obama 47 in Colorado

President Obama won 60% of the youth vote in 2012, compared to Romney's 37%. (CNN)

President Obama won 60% of the youth vote in 2012, compared to Romney's 37%. (CNN)

DENVER — The latest survey of likely Colorado voters, released Thursday morning by CBS News, The New York Times and Quinnipiac University, shows a one-point edge for Republican Mitt Romney, who leads President Obama here by a margin of 48-47 percent.

The survey of 1254 likely Colorado voters comes two days after an ARG survey showed Romney, on the upswing following his decisive debate win here last week, leading Obama in the state by a 50-46 margin.

Another survey, conducted by the University of Denver following the debate on its campus, found Obama clinging to a 47-43 percent lead over Romney.

Altogether, the recent polling has Romney now ahead of Obama in the RCP Colorado average — it’s a slim 0.6 percent lead — for the first time since the two candidates were tied in August prior to both conventions.

But other polling released Thursday, while it shows gains for Romney in several important swing states, underlines Obama’s enduring advantage in the race for the 270 electoral votes needed to win the White House.

Ohio, where Romney has held four campaign events in the past two days, continues to be a solid firewall for the president, who leads in a new Wall Street Journal/NBC News/Marist survey of likely voters there by a six-point margin, 51-45 percent.

That’s an improvement over a CNN/ORG survey of Ohio voters released Wednesday that had Obama up four, 51-47 percent, over Romney.

Unless Romney can close the gap there, he’ll have to win every other swing state on the board to overtake Obama.

But the GOP nominee continues to close the gap.

Other WSJ/NBC/Marist polls out Thursday show Obama’s lead down to just one point in Florida and Virginia; and additional surveys from CBS/NYT/Quinnipiac out Thursday show Obama’s lead in Wisconsin down to just three points.

In Virginia, interestingly, Obama holds a five-point, 51-46 percent edge over Romney, according to the Quinnipiac poll.

UPDATE: Romney now leads Obama by a whopping seven points in the critical swing state of Florida, according to a Mason-Dixon poll released late Thursday afternoon.

The survey of 800 registered Florida voters has Romney leading Obama by a margin of 51-44 percent, having gained with women, Hispanics and voters who don’t identify with either party.

Obama’s lead with Florida woman, which was 15 points in last month’s Mason-Dixon survey, is now down to just two points.

Obama campaigned at the University of Miami Thursday afternoon, his final campaign appearance before next Tuesday’s presidential debate at Hofstra University in New York.