Colorado Sen. Mark Udall, who was to appear with President Barack Obama in Denver at a Democratic fundraiser Wednesday, says he's too busy with legislative business in Washington to attend.

The president's trip to Colorado this week to raise money for Sen. Mark Udall underscores the risks for vulnerable Democrats of being linked with the increasingly unpopular president.

The White House says the woman, who is identified only as Alex, was given a raise by her boss the day after Obama's January State of the Union address, when the president urged Congress to raise the federal minimum to $10.10 an hour.

A three-judge panel of the 10th U.S. Circuit Court of Appeals in Denver found that Utah's ban on same-sex marriage violates the U.S. Constitution. The judges upheld a lower court ruling that struck down the ban in December.

Mosquito's carrying West Nile have been trapped in Weld County.

EPA Administrator Gina McCarthy spoke at the Western Governors' Association meeting.

Colorado becomes the first state in the nation to pass a law regulating ride-sharing companies like UberX and Lyft.

Colorado marijuana regulators looking to tighten the rules for edible marijuana products are pondering scaled testing regimes for strong edibles and weaker ones.

Mesa County officials say two days of flights over a large area from Collbran to Vega Reservoir are underway. About 87 flights over the area will remap the topography of the slide and are aimed at getting a better sense of the new landscape.

Thursday's hearing is set to focus on how prospective jurors should be interviewed.

The new law on edibles calls for state regulators to look at what rules should be in place to make marijuana edibles clearly identifiable and possible changes to dosing.

The Denver city attorney says the city's pleased with the Colorado Symphony's efforts to align its bring-your-own-cannabis fundraising concerts with city and state law.

Gov. Hickenlooper warns that even an average year means fires could scorch more than 155 square miles, or 100,000 acres.

Danger may persist for several more weeks because much of the snow in the Rockies hasn't started to melt.

The state Department of Revenue says that Colorado sold nearly $19 million worth of recreational pot in March, up from about $14 million worth of recreational pot in February.

Scientists have found that oil and gas fields along Colorado's Front Range have been emitting three times more methane and nearly eight times more cancer-causing benzene than previously thought.