Costs have steadily risen since the project began, even leading to construction being temporarily shut down in December.
Incumbent Republican Mike Coffman and Democratic challenger Andrew Romanoff are locked in a tight race for Colorado's 6th Congressional District.
Africans make up Colorado's second-largest immigrant group, but until recently, they haven't played much of a role in the state's political life. That's changing now.
The bill extending the nation's debt ceiling passed, but all of Colorado's GOP members voted against it.
Republican Mike Coffman at a campaign event. [Photo: Coffman campaign]