Clinton back after extraordinary night
Hillary Clinton has won the New Hampshire primary - resurrecting her bid for the White House.here was also a surprise comeback result in the Republican vote, with Americans left feeling that a proper race was now back on.
It had been too close to call between Clinton and Democrat rival Barack Obama, even with more than half of the results in.
With the results of 96% of precincts now in, Clinton has 39% of the vote compared to Obama with 36%, and John Edwards trailing third.
Obama conceded defeat, and congratulated Clinton on a "hard-fought win" before adding: "I am still fired up and ready to go."
The former first lady was joined on stage by her husband and daughter as she thanked supporters.
She said: "I come tonight with a very, very full heart, and I want especially to thank New Hampshire.
"Over the past week I listened to you and in the process I found my own voice."She added: "In the future we will build together - there will be no more invisible Americans."
Meanwhile, John McCain won the New Hampshire primary in the Republican race for the White House.
It was a remarkable comeback for the 71-year-old, who even eight years ago some considered too old to be a contender for the top job.
His supporters clapped and chanted "Mac is back! Mac is back!" as he gave his winning speech.
He said: "I hate to use the word 'kid' - but I think we showed the people of this country what a real comeback looks like.
"I'm grateful to the people of New Hampshire. I'm committed to keeping this country safe, and we're going to move on to Michigan and South Carolina and win the nomination."
McCain's victory over Mitt Romney - which so far stands at 37% to 32% - gives new life to his once struggling campaign.
John McCain thanks supporters
He is now in the middle of a wild scramble for the party's nomination after recently being written off when he was low on cash and axing campaign staff.
Conceding defeat, Romney congratulated him and announced: "I will strengthen America and I will stand up for the values we believe in."
Many believed Clinton needed to win in New Hampshire to keep her hopes of following her husband's footsteps into the White House alive.
But Sky's political analyst Jon-Christopher Bua believes she has a very tough opponent in Obama.
He says the power and persuasion of his speeches have been his strength with many comparing him to Martin Luther King.
He recalled one of his speeches in 2004 as "earth-shattering, and he's gone on from there - he's a great orator."
Bua said McCain's victory was a "huge morale boost", but questioned whether he would be able to keep up the momentum and energy over the next 10 months to November's election.