Ed Andrieski, Associated Press
Scaffolding leads to the dome of the Capitol in Denver on Jan. 25, 2012. Democrats ceded control of the Colorado state Senate to the GOP Saturday, setting up a divided Legislature after two years of Democratic control.

DENVER — Democrats ceded control of the Colorado state Senate to the GOP on Saturday, setting up a divided Legislature after two years of Democratic control.

Democratic Senate President Morgan Carroll announced Saturday morning that the chamber has flipped from 18 Democrats and 17 Republicans to 18 Republicans and 17 Democrats.

Republicans immediately vowed to pursue changes. GOP Leader Bill Cadman, a Colorado Springs senator expected to be named president, said his party would move "away from the extraordinary divisiveness of recent years."

"We are here to serve common interests, not special interests," Cadman said in a statement.

Carroll vowed to work with the new Republican majority. "People don't want gridlock. I think people said that loud and clear," the Aurora Democrat told reporters.

She joked that "every day was sort of a prolonged eternity" while waiting for ballot results, but that close contests required waiting.

The switch gives returning Democratic Gov. John Hickenlooper a divided Legislature. Democrats lost ground in the House, but they appear to have hung on in that chamber.

A spokeswoman said the governor was unavailable for comment Saturday.

Democrats have had the majority in both chambers the past two years, allowing them to easily pass many items on their wish-list, including civil unions and lower college tuition for children who grew up in Colorado but are in the country illegally.

They also steered through more divisive legislation, such as new gun restrictions and allowing driver's licenses for residents living in Colorado illegally. Democratic leaders insisted Saturday that their ambitious agenda during the last two years wasn't to blame for losses in an election that favored the GOP nationwide.

Touting his party's accomplishments, Democratic Leader Rollie Heath said the Democratic caucus would redouble its efforts. "There's a lot at stake ... we can't afford to move backward," the Boulder senator said in a statement.

The GOP planned to announce Monday when it would meet to elect new leaders. Republican Leader Bill Cadman of Colorado Springs was expected to become president.

The Senate switch came despite the Democrats regaining two seats they lost last year through recalls. Democrats in a Colorado Springs district and a Pueblo district were ousted by voters unhappy with 2013 votes on gun control, including a law requiring expanded background checks and another limiting ammunition magazines.

Those districts both returned to Democratic control Tuesday. Ironically, the Colorado Springs district went to a Democrat who formerly worked for a national gun-control advocacy group.

"It's as if the recall never happened," Michael Merrifield, the Colorado Springs Democrat who won Tuesday, said after his victory.

However, those gains were countered by races where Democrats appeared to be headed for losses in the Denver suburbs.

Democrats have controlled the state Senate for a decade. For eight of the past 10 years, Democrats have controlled both chambers of the Legislature.

Kristen Wyatt can be reached at http://www.twitter.com/APkristenwyatt