Romney leads with 47 percent support over Obama at 45 percent, according to the survey of 500 likely voters. That's within the poll’s 4.5 percent margin of error.
Colorado is a true toss-up, with Obama holding a 1.7 percent lead in the Real Clear Politics average of polls.
Obama won the state easily over Sen. John McCain (R-Ariz.) in 2008, 54 to 45 percent. It was only the second time since 1968 Colorado has gone for the Democratic presidential candidate.