Vice President Joe Biden on Saturday struggled to draw 1,000 people at two campaign events in Colorado, one of the most important swing states this election. 

Republicans in Colorado have said they have not seen this much enthusiasm for the top of a Republican ticket in a decade, which is a contrast from Democrats, who are seeing a diminished level of enthusiasm from 2008. 

At an event in Englewood, Colorado, Biden's crowd "fell just short of a thousand people"--while an event with Romney drew 18,000--and another Biden event drew 1,200 in Pueblo, Colorado.  

Obama won Colorado by nearly ten points in 2008, but Democrats are trailing Republicans in the early vote and Obama is trailing among independents, which means momentum is on Romney's side heading into Election Day.