Rep. Mike Coffman said in a statement on Monday that he will instead run for re-election in his congressional seat in Denver's southeastern suburbs.
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]