It's the first of many Election Days in Colorado, as early in-person voting gets underway.
Starting Monday, voters can cast ballots at locations in each county, or drop off ballots they filled out at home and received by mail.
Politicians from both parties urge their supporters to vote early, before the polls close on the evening of Nov. 6. Their enthusiasm comes in part from the fact that early voters can then spend their time encouraging friends and neighbors to vote.
Vice President Joe Biden made the appeal in person last week in Greeley, and Republican presidential nominee Mitt Romney will do the same Tuesday at Red Rocks Amphitheater in Morrison.