In Colorado, Obama is not hitting his mark with white voters, and is now losing suburban Denver voters as well as independents to Romney, who has also closed the gender gap versus the president. Enthusiasm among young voters has also fallen off for the president.

Men and women alike in Denver’s suburbs have shifted toward Romney; a month ago, Obama led by 18 points among Denver suburban women, an advantage that closed to 3 percent in the most recent poll. Romney has expanded his lead among Denver’s suburban men from 6 points last month to 13 points in this week’s poll.

A month ago, Obama led with independent 50 to 39 percent, an advantage which has shrunk to a virtual draw, 46 to 45 percent. Among women, the president led in September by a whopping 14 points, 54 to 40 percent, a lead that has been halved to 7 percent (52 to 45 percent).

Obama has been able to stay even with Romney by maintaining big margins in Colorado’s more liberal bastions and with strong support from Latinos, who say they support the president 63 to 34 percent. They make up a larger percentage of the electorate than 2008 and are breaking for Obama by a wider margin.