Coffman urges opposition to amendment set for vote on Thursday.
Former state Rep. Edward Casso (D-Colo.) is exploring a run against Rep. Mike Coffman (R).
"There's no one to blame but Democrats themselves," said one Hispanic activist.
Democrats Sen. Mark Udall and House hopeful Andrew Romanoff feel the heat.
Dems worry the tactic won't be enough for Sen. Mark Udall (D) against Rep. Cory Gardner (R).
The group led by Tom Steyer launched its first ad in Colorado’s Senate race.
Billionaire environmental activist Tom Steyer is focusing his efforts on convincing people who care...
A Colorado judge overturned a ban on hydraulic fracturing approved by Fort Collins voters last year...
Similar to other states, the judge stayed the ruling pending appeal.
After winning GOP nomination, Ken Buck will likely succeed Rep. Cory Gardner.
A Quinnipiac poll shows the Ky. Republican would lead the Dem front-runner by 5 points.
Opponent Rep. Cory Gardner (R-Colo.) has yet to announce his fundraising totals.
Obama designated Pullman a national monument for its role in the civil rights movement.
The congressman's win over the Democratic incumbent is critical for the GOP's majority hopes.
Republican hopes of winning the Senate and making House gains continue to rise.
Democrat stood by his vote for ObamaCare while Gardner tacked to center on immigration.
OPINION | A House election in the suburbs of Denver offers big clues to the political future.
Republican Senate candidates are pushing to make the pill available over the counter.
Oil and gas services provider Halliburton Co. has launched a television advertisement in Colorado...
Colorado environmentalists said they have gathered enough signatures to get initiatives on the...
Former Rep. Bob Beauprez clinches GOP nomination, besting immigration hardliner Tom Tancredo.
Udall said the bill sponsored by his election opponent “has the same goals” as his proposal.
The ad hitting Sen. Mark Udall (D-Colo.) used an image of him and Obama meeting with victims.
Rep. Cory Gardner (R-Colo.) starts his Senate bid in a dead heat with Sen. Mark Udall (D-Colo.),...