BOSTON – Real estate mogul Donald Trump sailed to victory in Massachusetts’ Republican primary on Tuesday, while Hillary Clinton narrowly edged out Sen. Bernie Sanders in a Democratic contest that stretched until nearly midnight.

Clinton, a former Secretary of State, was locked in a tight race most of Tuesday night against the Vermont senator in cities and towns where she handily defeated Barack Obama in 2008.

The results remained close after polls closed at 8 p.m. with both Democrats taking the lead at several points in the evening, until the race was eventually called in Clinton’s favor. Clinton won primaries in six other states — Virginia, Alabama, Tennessee, Arkansas, Texas, Georgia and the territory of American Samoa. Sanders won four states — Oklahoma, Colorado, Minnesota and Vermont.

“What a Super Tuesday!” she told cheering supporters at a televised campaign rally in Florida Tuesday night. “Now this campaign moves forward to the Crescent City, the Motor City and beyond. We’re going to keep working for every vote and finish the job.”

Polls showed Clinton and Sanders neck-and-neck ahead of Tuesday’s primaries and caucuses. Her showing was a stark contrast to 2008, when she won the state with 56 percent of the vote.

Trump, who was favored in polls among Republicans, carried the Bay State’s GOP vote with more than 50 percent, winning in most of the state’s 351 cities and towns. Ohio Gov. John Kasich and Florida Sen. Marco Rubio were in a close race for second place, with about 18 percent each. Locally, Kasich won Wenham with 32 percent of the vote.

Trump also picked up wins by wide margins in Virginia, Alabama, Arkansas, Texas, Oklahoma and Georgia.

In the North of Boston region, Trump carried blue-collar communities such as Lawrence, Lynn, Haverhill, Methuen and Beverly but also affluent small towns such as Marblehead, Swampscott, Andover and North Andover, according to preliminary results.

While Clinton soundly won the Greater Boston area, Springfield and Lynn, Sanders picked up the vast majority of the state’s towns and cities including wins in Gloucester, Rockport, Newbury, Amesbury and Salisbury, Danvers and Topsfield — in some cases by double digit margins. In Methuen, unofficial results showed Sanders leading Clinton by one vote.

But Clinton won big in Marblehead, Swampscott, Wenham, Manchester, North Andover and Middleton.

Overall, the Super Tuesday results foreshadow a likely showdown between Clinton and Trump, political observers say.

“It seems like we have a general election matchup,” said Erin O’Brien, chairwoman of the political science department at the University of Massachusetts at Boston. “Neither of them have sewn it up mathematically, but the wins are important in terms of forward momentum as we get closer to November. These two are trains that appear to be bound for one another.”

Massachusetts was one of a dozen states and American Samoa that cast ballots in the Super Tuesday contests. All told, the support of 595 Republican delegates was up for grabs in Tuesday’s contests, while 865 Democratic delegates were on the line.

In a preliminary count, Clinton had amassed the support of 984 pledged delegates as of last night, including 457 superdelegates, according to an Associated Press tally. Sanders had 347 pledged delegates, including 22 superdelegates.

A Democrat needs 2,383 to secure the nomination.

Trump led the Republican delegate race, with 258 under his belt as of last night, according to AP’s preliminary count. Cruz, who won his homestate Texas, had 110, Rubio 70 and Kasich had 23. A total of 1,237 delegate votes are needed for the Republican nomination.

Massachusetts voters were awarding 91 Democratic delegates and 42 GOP delegates.

Turnout in the Bay State primary was expected to exceed that of 2008, when more than 1.8 million ballots were cast.

The state counts nearly 1.5 million Democratic voters and 468,295 Republicans. The large majority the state’s 4.2 million voters are “unenrolled,” or independents not affiliated with a major party.

Leading to Tuesday’s primaries, polls consistently showed that voters are fed up with politicians, big money in politics, income inequality and political correctness on both sides of the partisan divide. Those sentiments were echoed by those outside the polls.

“I’m tired of Washington politics, that’s why I voted for Trump,” said Brett Sacks, 37, from Middleton. “We need a change, and he’s the only one who isn’t beholden to anyone. He’s a billionaire. He isn’t doing it for the money, that’s for sure.”

Sacks said he is concerned about illegal immigration and support’s Trump’s vow to build a wall along the Mexican border.

“We need to get our borders under control,” he said. “There’s too many people coming here who shouldn’t be allowed in.”

Pete Barnes, 23, of Beverly, voted for Sanders and said he was drawn by the Vermont senator’s sincerity.

“He’s not just telling everyone what they want to hear to get elected,” Barnes said. “He really cares about people.”

But voters like Liz Mercado, 41, of Salem, said they are more concerned about jobs, the economy and stagnant incomes.

She voted for Clinton and said she is excited about the idea of electing the first female commander-in-chief.

“Clinton has the credentials and experience to led the country,” Mercado said after casting a ballot at a polling station in the Saltonstall School in Salem. “She’s the most qualified to take on Trump or whoever wins the Republican nomination.”