Democratic Rep. Crisanta Duran of Denver has been unanimously elected as Colorado's new House speaker.

Duran succeeded Boulder Democrat Dickey Lee Hullinghorst of Boulder as speaker on Wednesday - the first day of Colorado's 2017 legislative session.

Hullinghorst was term-limited and could not seek re-election last year.

Across the hall, Republican Kevin Grantham of Canon City is the new Senate President. He succeeds Republican Bill Cadman of Colorado Springs, who was also term-limited.

Democrats control the House, and Republicans control the Senate. Divided partisan control means that it's difficult to get bills to the governor's desk.

Both sides say Colorado's biggest challenge is finding ways to accommodate new residents by fixing aging roads and adding housing. But the parties disagree on how to accomplish those goals.