California

Republican John McCain and Democrat Hillary Rodham Clinton were the winners in the state with Super Tuesday's biggest number of delegates at stake.

Clinton handily won California's Democratic presidential primary, while McCain beat rival Mitt Romney in the Republican race.

At stake were 370 delegates for Democrats and 170 for Republicans.

Clinton had 54 percent of the vote to Barack Obama's 33 percent, with 20 percent of precincts reporting. McCain had 44 percent to Romney's 26 percent.

Exit polls conducted for The Associated Press indicate that Clinton drew strong support from the state's Hispanic voters, who backed her by a margin of about 2-1.

The exit polls also showed that Obama enjoyed only a slight advantage among voters under the age of 30.

Connecticut

There's an upset victory for Barack Obama in a northeastern state that had long been seen as a Hillary Rodham Clinton stronghold.

Obama is the winner in Connecticut, where Clinton had a double-digit lead in polls of likely voters just weeks ago. Obama was able to close the gap as the Democratic field narrowed to the two of them.

As the race became closer, Clinton made two visits to Connecticut in the final days of the campaign, including a stop Monday at Yale University, where she attended law school. Hours later, Obama drew thousands to a rally in Hartford.

In the Republican primary, John McCain swept to an easy victory. Connecticut Republican voters were again showing their preference for independent-minded candidates.

It was the second Connecticut primary win in eight years for McCain. In 2000, he beat George W. Bush, who was born in Connecticut. This time, he beat Mitt Romney, the former governor of neighboring Massachusetts.

Minnesota

College towns propelled Barack Obama to a big win in Minnesota's Super Tuesday caucuses.

He used his appeal among younger voters to swamp Hillary Clinton.

Delegates are awarded proportionately, so Clinton could still claim some of the states 72 national convention delegates.

One Obama supporter, waiting in a long line, proclaimed: "Enough with all-in-the-family administrations." But a Clinton backer noted that the presidency is "not an entry-level position."

Mitt Romney's victory over John McCain in a non-binding straw poll in Minnesota guaranteed no delegates, but delivered critical support in his national struggle with McCain.

Minnesota voters clogged high schools, community centers and college unions, some parking their cars several blocks away. Veteran caucus-goers said the lines were the longest they've ever seen.

Oklahoma

A close race in Oklahoma went John McCain's way.

The Arizona senator edged out Mike Huckabee in Oklahoma's Republican presidential primary, while Hillary Rodham Clinton had no trouble beating Barack Obama in the Democratic race.

McCain had 38 percent with more than three-fourths of the vote counted. Huckabee had 33 percent and former Massachusets Gov. Mitt Romney had 24.

Clinton was the heavy favorite in Oklahoma over Obama, who did not campaign in the state in the weeks leading up to the election.

Alabama

Evangelical and black voters appear to be big factors in wins for Mike Huckabee and Barack Obama in Alabama.

Exit polls from the Republican primary showed Huckabee had strong appeal to fellow Southern Baptists, as he defeated John McCain and Mitt Romney.

Across Alabama, about half of the Democratic voters are black, and Obama won 80 percent of their votes. Exit polling also shows he captured 60 percent of the votes from people under 30, who made up more than one in 10 voters.

Elections officials were preparing Tuesday for a better-than-average turnout because more than 58,000 new voters had signed up in the three months leading up to Super Tuesday.

Arkansas

A former governor and the state's one-time first lady are winners in Arkansas.

Republican Mike Huckabee and Democrat Hillary Rodham Clinton have won their parties' primaries.

Clinton, who served as the state's first lady for 12 years, was helped by voter affection for her husband. Huckabee, meanwhile, enjoyed widespread support among the state's evangelical voters.

Huckabee is hoping that Arkansas and other Bible Belt states will help him in the race against John McCain and Mitt Romney.

Arizona

Hillary Rodham Clinton and John McCain are winners in Arizona.

McCain, a senator from the state, won despite anger from conservatives over his stance on illegal immigration.

Preliminary results of an AP exit poll show Clinton ahead among those who said the right experience was the most important candidate quality. Barack Obama had an overwhelming lead among voters who said bringing needed change was the most important quality.

Republican Mitt Romney had strong support from Republicans who described themselves as conservative and those who believe illegal immigration is the most important issue facing the country.

McCain had overwhelming support from Republicans who described themselves as liberals, and he also prevailed among moderates.

New Jersey

Hillary Rodham Clinton's lead in New Jersey isn't going to vanish after all.

The New York senator won the state's primary despite recent polls suggesting that Barack Obama was erasing Clinton's advantage in the state.

Meanwhile, John McCain had a much easier time winning in New Jersey, picking up support from party moderates. He also got a boost from the early exit from the race by former New Yorker Mayor Rudy Giuliani.

McCain picked up all 52 of New Jersey's Republican delegates. Delegates in New Jersey's Democratic primary are awarded proportionately.

Georgia

Mike Huckabee and Barack Obama were the winners of Tuesday's primaries in Georgia.

Huckabee edged out Republican rivals John McCain and Mitt Romney for the victory in a state that had been critical to his hopes, because of its base of religious voters.

He did so with the help of a folksy style, and a campaign that focused heavily on conservative values in hopes of attracting Christian evangelicals.

According to surveys of voters, six in ten Republican voters in Georgia were white evangelicals and born-again Christians. The polls indicate that Huckabee won four out of 10 of their votes.

Among Democrats, Obama's message of change appeared to resonate with Georgia voters. He swept to a dominating win over Hillary Rodham Clinton, riding a wave of support from blacks and young people.

Obama had cultivated black support in Georgia. He spoke from the pulpit of Martin Luther King Jr.'s church the day before the holiday in King's honor. Blacks make up about half of the Democratic primary vote in Georgia. Exit polls indicate that nearly 90 percent of them voted for Obama.

New York

John McCain and Hillary Rodham Clinton were the winners of one of Super Tuesday's biggest prizes.

McCain defeated Mitt Romney to claim all of New York's Republican delegates. He had the backing of former New York City Mayor Rudy Giuliani in his quest for the state's 101 winner-take-all delegates. Giuliani ended his campaign last week after a poor showing in Florida's primary.

Although Clinton won New York, Barack Obama appears poised to get a big chunk of New York's 232 Democratic delegates.

Clinton was tested by Obama in heavily black neighborhoods in New York City and liberal upstate stretches, as well as on college campuses.

The Associated Press made its call for McCain and Clinton based on surveys of voters as they left the polls.

Illinois

It's a home-state win for Barack Obama, in a battle with Hillary Rodham Clinton for the lion's share of 153 Democratic delegates available in Illinois.

On the Republican side, John McCain defeated Mitt Romney in the Illinois GOP primary.

The delegates available to Obama and Clinton in Illinois represent the third-biggest prize on Super Tuesday, behind only California and New York.

Obama is in his first term in the U.S. Senate from Illinois. Clinton has Illinois roots as well. She grew up in the Chicago suburbs.

Normally, Illinois holds its primary in mid-March. This year, state lawmakers moved the primary up to give Obama a boost.