Sen. Mark Udall's (D-Colo.) late slide continues as a Quinnipiac poll released Thursday finds him now trailing Rep. Cory Gardner by seven points among likely voters, 46 percent to 39

percent. In Quinnipiac's previous survey, Gardner had a five-point lead. Polls in the closing weeks of the election cycle have shown Gardner pulling away in the race, and

_FiveThirtyEight_ now gives him a 75 percent chance of picking off Udall's seat. SUBSCRIBE TO THE WEEK Escape your echo chamber. Get the facts behind the news, plus analysis from

multiple perspectives. SUBSCRIBE & SAVE SIGN UP FOR THE WEEK'S FREE NEWSLETTERS From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered