DENVER (AP) - Bernie Sanders rolled to a demonstrative victory in Colorado's Democratic presidential primary, a Super Tuesday showing that underscored the state's shift to the left among young voters. In its first presidential primary in 20 years, Colorado saw a last-minute surge of votes among Democrats and independents, who for the first time cast ballots without having to affiliate with either major party.
More than 1.5 million of Colorado's 3.4 million voters had cast ballots, the secretary of state's office said. Unaffiliated voters -- the largest voting bloc -- made up nearly a third of that total. Most voted in the Democratic primary.
President Donald Trump resoundingly won the state's Republican primary.
The outcome for Democrats highlighted a schism between growing numbers of young, college-educated voters and the traditional, more moderate party establishment.
Sanders easily defeated Hillary Clinton in Colorado's 2016 Democratic caucuses, and the Vermont senator has maintained an enthusiastic base in Colorado ever since.
Democrat Noreen Petkovich, a 40-year-old nurse, voted for Sanders Tuesday. She was drawn to his calls for health care coverage for all and public investment in education. But what really counted is Sanders' resonance among young voters, Petkovich said.
"Things need to change and youth is part of that," she said.
PHOTO GALLERY: Super Tuesday In Colorado
The primary replaced a non-binding caucus system in Colorado as officials tried to get more voters involved in the national presidential race. But the volume of votes cast meant the Democratic party won't start allocating its 67 delegates until Wednesday.
Colorado held presidential primaries from 1992 to 2000, then dropped the voting to save money. In 2016, voters approved reinstating primaries after complaining about the caucus system that involved thousands of precinct meetings to choose presidential candidates.
Four years ago, many Democratic voters couldn't get into their caucuses, which were filled to capacity. Republicans were angry that their precinct caucuses didn't include an unofficial vote for president.
Sanders has campaigned for Jared Polis, Colorado's first-term governor, and freshman Rep. Joe Neguse of Boulder.
Democrats, whose ranks have been trending younger and to the left, won the Colorado Statehouse, the governorship and all statewide offices in 2018. Health care and the environment topped voters' concerns and will resonate in this year's elections.
"Bernie's just the only one of them that felt honest. Environmentalism is a big one for me, and his policies align with what I want to see the most," said Jake Wall, a 23-year-old machine shop purchaser who voted Tuesday for the Vermont senator.
Some observers say Colorado's shift left in recent elections could ease a bit if Sanders, a self-described democratic socialist, emerges as the Democratic nominee.
The ranks of Republican and Democratic voters are nearly equal in the state that boasts a multibillion-dollar fossil fuels industry as well as a vibrant environmental movement.
The 2018 midterm election "was a referendum on Trump, practically a vote against every Republican on the ballot," said CBS4 political analyst Dick Wadhams, a veteran Republican strategist and former party chairman. "But this year is different. Trump is on the ballot. If Sanders also is on the ballot, that puts Colorado in play."
The state's caucus system is still used for down-ballot races, including a re-election bid by Republican Sen. Cory Gardner. Candidates for Congress and state offices can seek votes at precinct caucuses on Saturday and at subsequent party assemblies, or petition their way onto primary ballots in June.
By JAMES ANDERSON, Associated Press ... Associated Press writer Nicholas Riccardi contributed to this report.
(© Copyright 2020 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)
for more features.