More likely, however, the poll is simply evidence of a tight race in the crucial swing state, coupled with Rasmussen's conservative lean. The survey contacted 500 likely voters in the state and carried a margin of error of plus or minus 4.5 percentage points.

Still, the president is working hard to shore up support there. Obama is scheduled to speak at a college campus in downtown Denver on Wednesday, where former Georgetown Law Student Sandra Fluke — who famously testified about access to birth control and drew the attention of conservative talk show hosts including Rush Limbaugh — is set to introduce him. The president will also stop in Grand Junction, Pueblo and Colorado Springs during his swing through the state.

The Romney campaign has also been aggressive in the state, with Romney visiting last week and Sen. Rob PortmanRobert (Rob) Jones PortmanSenate moving ahead with border bill, despite Trump 13 GOP senators ask administration to pause separation of immigrant families Lawmakers, businesses await guidance on tax law MORE (R-Ohio), considered a top vice presidential contender, campaigning there Wednesday to counterbalance the president.