Colorado Peak Politics - OCTOBER 31: Is The Obama Ground Game Over-Rated? Colorado GOP’s Widening Turnout Lead Suggests, Yes.

"In the three big swing counties of Colorado Republicans are leading by decent margins. In Jefferson County, Republican ballots outnumber Democrats by 6,160. In Larimer County, the GOP retains a 4,624 lead. For Arapahoe County, Democrats have sent in 3,209 less ballots than Republicans."