Colorado's gubernatorial candidates didn't need to say a single word Friday night on the downtown Denver debate stage to start drawing a contrast with one another.

Democratic candidate Jared Polis walked onto the stage wearing blue tennis shoes, while Republican Walker Stapleton wore shiny black dress shoes.

The two men also clashed at the microphone when the cameras started rolling.

Dozens of advocacy groups from the U.S. and Latin America are asking the FBI to share information from a DNA database to help identify remains among thousands of migrants who have perished along the U.S.-Mexico border.

But U.S. officials said Friday they are hamstringed by a federal law limiting access to the database.

They pledged to continue talks on sharing forensic information and efforts to identify the missing during a field hearing Friday of the Inter-American Commission on Human Rights in Boulder, Colorado.

The Department of Transportation has announced new federal voluntary guidance on the development and use of automated vehicles — with the goal of "removing unnecessary barriers" to innovation.

Choir students at Rocky Mountain High School knew, when you were in Barbara Lueck’s class, you were with family.

“We called her ‘Mama Lu’ for a reason,” said Doug Usher, a 2000 Rocky graduate. “She was there for you inside and outside the classroom and you could go to her anytime with anything and she would be there, she would listen. She embodies that spirit of what we all want teachers to be.”

So when her former students found out the beloved choir director had cancer, they knew there was only one thing to do.