Cold, stagnant weather has allowed the concentrations of small particles of pollution in the air to climb in the area.

An impeachment trial could give candidates who don’t have a day job — like former Vice President Joe Biden and outgoing South Bend, Indiana, Mayor Pete Buttigieg — an advantage in key early states.

It's not just population that's grown. A highly educated workforce in Denver has also pushed people's household incomes up.

The event came barely 24 hours after the House votes to impeach President Donald Trump.

The historic vote fell almost entirely on party lines.

James Curtis Clanton of Lake Butler, Florida, was arrested in the 1980 slaying and sexual assault of Helene Pruszynski.

The reclassification requires the state to revise its plan to reduce ozone-forming emissions.

Rents are outpacing salaries in the fifth-largest U.S. city. Someone needs to earn nearly $20 an hour to afford an average two-bedroom apartment in the Phoenix area.

The dispute centers on the U.S. Bureau of Prison’s decision to not distribute 11 Prison Legal News magazine issues between 2010 and 2014.

The House Judiciary Committee is expected to approve articles of impeachment against President Donald Trump on Friday after abruptly shutting down a 14-hour session late Thursday.

Arizona, Nevada and Mexico will start taking less water from the river Jan. 1 under a drought contingency agreement signed in May. It followed lengthy negotiations and multiple warnings from Burman that if the seven states didn’t reach a deal, the federal government, which controls the levers on the river, could impose severe water restrictions.

BLM estimates there are 88,000 animals on U.S. rangeland in 10 western states and nearly 47,000 in government holding pens and pastures.

The complaint is the second one filed against Hickenlooper as the former governor explored running for federal office.

Addazio agreed to a five-year contract Wednesday, with a base salary of $1.5 million in the first year and with a $50,000 increase each year of the deal.

Red paint was splashed across the sign and with the scrawled words ”De’Von will not RIP."

The unidentified woman from Fort Collins was buried in a powerful slide Sunday at Diamond Peak just north of Rocky Mountain National Park.