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Lamborn had no Democratic opposition in the 5th Congressional District on Tuesday. It's the most unfriendly territory for a Democrat of any district in Colorado.

Lamborn was first elected to the U.S. House in 2006 and is seeking his fourth term. The 5th District was only marginally changed during 2011's congressional redistricting.

Lamborn is facing a first-time independent challenger, Dave Anderson, and three third-party candidates.

Anderson courted Democratic voters but insisted he is not a Democrat. That was probably a wise tactic in a district that hasn't elected a Democrat since it was created in 1972.