Photo: Colorado Democrats (AP Photo)

Shortly after mailing his own ballot, U.S. Sen. Mark Udall, D-Colo., center, walks with Denver Mayor Michael Hancock, left, former Denver Mayor Wellington Webb, third from left, and President of Planned Parenthood Federation of America Cecile Richards, far right, on a campaign stop to remind voters to mail in their ballots, in the Five Points area of Denver, Monday, Oct. 20, 2014.