Sen. Bernie Sanders speaks at a campaign rally in Oklahoma City, Feb. 28, 2016. Reuters/Brian Snyder

Vermont Sen. Bernie Sanders won the Democratic caucuses in Colorado during the Super Tuesday contests, projections indicated. It was a crucial win for the struggling insurgent candidate over front-runner Hillary Clinton.

The state has 66 delegates and a population with similar racial demographics to Iowa, a state where Sanders lost by just a razor-thin margin to Clinton a month earlier. Colorado Republicans did not vote or caucus on Super Tuesday.

Leading up to the vote, three Democratic legislators offered thoughts on their endorsements, the Coloradoan reported. Sen. John Kefalas, citing Sanders’ economic agenda, said he would endorse the Vermont senator. Rep. Jeni Arndt, a representative from Fort Collins, said Clinton had the “experience and expertise” to lead the country forward. And Rep. Joann Ginal said she hadn’t yet chosen who to endorse, but added, “Stay tuned!”

Super Tuesday Guide | InsideGov

Clinton has maintained a national lead ahead of Sanders since the start of the campaign. While she was once presumed the nominee, the contest grew considerably more competitive than many had anticipated, as Sanders saw his support surge among young, first-time voters. Clinton, however, continued to hold a strong lead among minorities, including black and Latino communities.

According to projections, Clinton won most states on Super Tuesday, though Sanders won his home state of Vermont and Oklahoma and Minnesota in addition to Colorado. A dozen states and one U.S. territory voted Tuesday.

On the Republican side of the race, real-estate mogul Donald Trump had a commanding national lead according to polling ahead of Super Tuesday. Florida Sen. Marco Rubio and Texas Sen. Ted Cruz were vying for second place in the primaries and caucuses.