The high-turnout Super Tuesday election is another blow to Vermont's democratic socialist senator in a state that was considered a must-win. Clinton scored victories in Texas, Alabama, Tennessee and others early in the night.

The Associated Press called the race in Clinton's favor nearly four hours after polls closed Tuesday. With more than 97 percent of precincts reporting Wednesday morning, Clinton held onto a margin of victory just under three points, taking 50.3 percent of the Democratic vote to Sanders' 48.5 percent.

BOSTON, MA - Hillary Clinton battled Bernie Sanders to a narrow victory after an hours-long tussle in Massachusetts' Super Tuesday contest that officially ended shortly before midnight.

Sanders has won Oklahoma, Colorado, Minnesota and his home state of Vermont. Couple that with Sanders' high fundraising numbers, and his campaign is pushing forward to the upcoming winner-take-all primaries, despite a narrow path to victory.

Exit polls show young voters turned out for Sanders in Massachusetts as in other states, but not in sufficient force to edge out Clinton. The gender gap favored the former secretary of state, winning by 15 points among women, who made up the majority of Bay State Democrats, according to early exit polls.

Check back for live updates and results as they come in

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View from the polls

Early Tuesday morning, one Beacon Hill polling station was already busy, with a line of mostly younger voters snaking their way around the West End Library foyer and past the sign-in tables, many with smartphone and coffee in hand. One Sanders supporter walking down Cambridge Street hoisted a paper bag from Dunkin' Donuts and a large coffee, joking, "We need to fuel the grassroots movement."

In Woburn, resident Christopher Titus left the polls Tuesday afternoon with a prediction on how his town will lean.

"I'm thinking Hillary Clinton and... almost hate to say his name," he said, after a pause. "Trump."

Early numbers suggest Titus' prediction will bear out for both on a statewide basis. It comes down to turnout, which Secretary of State Bill Galvin has said could potentially be record-breaking.

Turnout predictions, as of 7:00 p.m.

In Massachusetts, the Democratic vote is concentrated in Boston. There, turnout was on pace to surpass the 2008 primary election record, with more than 120,000 votes cast as of 7:00 p.m. This points to a potentially record-breaking turnout in the state overall, as the president of MassINC Polling observed earlier in the day.