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In a state balanced among Democrats, Republicans and independents, Cory Gardner has necessarily taken a tack to the state's center.
Ballots are landing in mailboxes across Colorado as Democratic Sen Mark Udall makes his closing argument for re-election.
It's Election Day in Colorado - for the next three weeks.
Hillary Clinton swung by Colorado to help out embattled Democratic Sen. Mark Udall on Monday during a western swing in which she also spoke of being a new grandmother.
Liberals are going after Rep. Cory Gardner for his environmental positions -- in Spanish.
House Democrats are canceling $1.4 million in television advertising in Colorado as their chance at upending a Republican congressman has diminished.
Colorado voters have voted three times against ballot measures to ban all abortions.
Sen. Mark Udall (D-Colo) and his Republican challenger, Rep. Cory Gardner, clashed in the most raucous debate yet of their neck-and-neck race Thursday night.
Immigration took center stage again Thursday in the final English-language debate between Republican Rep. Mike Coffman and his Democratic challenger, Andrew Romanoff.
Mike Coffman spent his childhood in Aurora, but the city he now represents as part of Colorado's 6th congressional district has changed so dramatically that Coffman himself has shifted his focus.
Republican Rep. Cory Gardner has more campaign cash on-hand than Democratic Sen. Mark Udall as their tight contest heads into its final weeks, the campaigns said Thursday.
Democratic Gov. John Hickenlooper and Republican gubernatorial challenger Bob Beauprez will be in Fort Collins for another debate before next month's election.
In a bit of political reinvention, Andrew Romanoff moved to Colorado's 6th U.S. House district to challenge for its congressional seat. But, in a sense, the district has also revamped itself.
Sen. Mark Udall and Rep. Cory Gardner skirmished over their visions for Colorado's economy during a prickly debate on Tuesday that featured aggressive attacks from both candidates.
Boulder and Denver counties are joining other Colorado counties in issuing marriage licenses to gay couples.