Democratic primary voters showed up in record numbers Tuesday in Utah and Virginia and exceeded 2016 turnout levels in several states in a sign of elevated enthusiasm that could spell trouble for President Donald Trump in the general election.

Former Vice President Joe Biden won nine of the 14 states with one state still too close to call by Wednesday morning in a remarkable turnaround of his campaign, which was on life-support just days ahead of Super Tuesday. A commanding win in Saturday's South Carolina primary and the exit of fellow moderates Sen. Amy Klobuchar and South Bend, Indiana, Mayor Pete Buttigieg from the race gave Biden a surge of momentum heading into Tuesday.

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High turnout levels combined with Biden's strong showing in states across the country could indicate that the former vice president is best poised to take on Trump in the general election, analysts say – an issue at the forefront of many Democrats' minds.

Roughly 1.3 million people, or 23% of registered Democrats, cast a ballot in the Virginia contest Tuesday, nearly double the number of votes recorded in 2016 when 14% of registered Democrats voted. Tuesday's participation also shattered records set in 2008, when almost 1 million votes were cast and the turnout rate hit 20%.

Biden carried Virginia Tuesday with a commanding 53% of the vote, beating runner-up Sen. Bernie Sanders by 30 percentage points.

And turnout was up by about 200,000 votes over 2016 in neighboring North Carolina, where Biden easily won by roughly 20 percentage points.

Utah, which held its primary on Super Tuesday this year for the first time, also saw record turnout: 32.5% of registered voters cast nearly 480,000 votes Tuesday, the highest levels recorded in the state's history. Sanders won the state with 35% of the vote to Biden's 17%.

Voters in Texas also turned out in droves. Results from 97% of precincts show that nearly 1.9 million voters cast a ballot Tuesday, easily exceeding the 1.4 million total from the 2016 primary. And there were reports of voters lined up outside of polling stations waiting to vote for nearly six hours past closing time. Biden narrowly edged out Sanders to win the Lonestar State in a significant and surprising victory.

Biden also upset Sanders in Minnesota, which voted for Sanders over former Secretary of State Hilary Clinton in 2016. The state saw turnout explode Tuesday with roughly a quarter-million votes cast. In 2016, when the state held a Democratic caucus, less than 200,000 votes were cast.

But youth turnout as a share of the total vote declined from 2016 in several states, a sign that Sanders was unable to deliver on his promise to drive young voters to the polls in huge numbers.