Hannah Long-Higgins
BBC News, New Hampshire

The energy in gym at Southern New Hampshire University is building now as results pour in showing Bernie at the head of the pack.

Chants of “Bernie, Bernie, Bernie!” and “Health care is a human right!” break out every few minutes, and the risers at the front of the gym have been strategically packed with Bernie fans and signs who are now awaiting the arrival of the man himself.

It looks like being a mixed night for the three women left in the race. Amy Klobuchar appears to have hoovered up many of the undecided voters to finish third, but it is likely to have been another disappointing night for Elizabeth Warren and Tulsi Gabbard.

A CNN exit poll reports that 30% of Democratic voters in New Hampshire think a woman would have a harder time beating Trump in November.

A slim 11% said it would be easier for a woman to take on the sitting president, but the majority - 58% - said there would be no gender difference.

We took a look at how gender affects US politics here: Are voters biased against women candidates?

Anthony Zurcher
BBC News, New Hampshire

At this point, Elizabeth Warren’s campaign is in serious trouble. She has now finished well behind Sanders, her liberal rival, twice, and there’s no indication that her fortunes will change any time soon. Biden at least still clings to the hope of a South Carolina rebirth. Warren’s resurrection ground is difficult to discern.

New Hampshire may end up being viewed as the deciding battleground state between the two favourites of grass-roots progressives. Both candidates hailed from neighbouring states, and both committed considerable resources to the effort. Sanders is the likely winner and Warren a distant fourth, with single-digit support.

It ended up not even being close.

Warren’s best chance at this point is to hope for all-out war between the moderate Democrats and Sanders that leaves both sides diminished. Then she can position herself as compromise candidate that emerges from the smoking wreckage.

It’s a long-shot play, however, and a remarkable reversal of fortune for someone who for a stretch last year seemed like she could become the candidate to beat.

Image source, CBS

To chants of her name, Amy Klobuchar takes the stage and thanks New Hampshire voters for their support.

"Hello America, I'm Amy Klobuchar, and I will beat Donald Trump," the senator says. "While there are still ballots left to count, we have beaten the odds every step of the way."

Klobuchar surged to take third place in the New Hampshire primary after a poor performance in Iowa.

"Because of you, we are taking this campaign to Nevada," she adds. "We are going to South Carolina. And we are taking this message of unity to the country."

In exit polls, Klobuchar did well among voters who wanted to unite the country.

Her supporters interrupt her with cheers and chants of: "Vote Amy, beat Trump!"

Following a lacklustre performance in New Hampshire, Joe Biden has been speaking to supporters in South Carolina, assuring them that "it ain't over... we're just getting started". He had travelled south when it became clear he would not perform well in New Hampshire.

Masking his disappointment after another blow to his candidacy, Biden appealed to his African-American voters - among his most loyal supporters.

"I've said many times, you can't be the democratic nominee... unless you have overwhelming support from black and brown voters," he said, noting that "99.9%" of African-American voters hadn't voted yet.

South Carolina holds its primary on 29 February.

Amy Klobuchar, who's in third place so far, is reportedly going to expand her staff in Nevada and South Carolina, among other states.

Currently, CBS reports, she has about 30 campaign staffers in Nevada. The western state is the next to hold its contest, on 22 February.

Hannah Long-Higgins
BBC News, New Hampshire

The first wave of Bernie supporters have arrived and piled into gym bleachers at Southern New Hampshire University, Bernie’s headquarters for the night.

So far, the crowd is a mix of inter-generational voters eager to see big change in American politics. Moments after this photo was taken, these Bernie supporters erupted in cheers as the first results appear on a giant screen showing live updates.

We're seeing 50% of the votes in now. Here's how things stand.

The (possible) winners:

• Bernie Sanders - The senator from neighbouring Vermont has a clear lead thus far, meaning it's all but confirmed that he will walk away with the most delegates this evening
• Pete Buttigieg - Buttigieg is also having a good night, and is not so far behind Sanders with 24% of the vote. He's on track to win some delegates

• Amy Klobuchar - Klobuchar had a rough time in Iowa, but is doing much better in New Hampshire with 20% of the vote putting her in third place and also set to win delegates. Some US analysts say it's her best week so far

The (possible) losers:

• Elizabeth Warren - The Massachusetts senator has surprisingly received a paltry 9% of the vote, but she praised her rivals in a speech earlier this evening, calling on Democrats to come together ahead of the election
• Joe Biden - The former vice-president isn't even in New Hampshire, having ditched the state on primary night to head down to South Carolina instead, where his campaign hopes he'll see more support than the 9% he's on track to receive in New Hampshire

• Tom Steyer - The California billionaire is polling at 4% tonight. He has spent more than $200m of his own money on his campaign so far
• Tulsi Gabbard- Gabbard told her supporters she was still fighting despite winning just 3% of the vote in New Hampshire so far

Jon Sopel
BBC News, New Hampshire

Image source, Getty Images

There's plenty to party about in Bernie Sanders's headquarters in New Hampshire as returns so far show he'll claim victory in the state.

I think establishment Democrats - typically sceptical of the Vermont senator - will also look at the results and note that he made a better showing competing in his last primary in New Hampshire, facing Hillary Clinton in 2016.

Still, while Sanders is followed closely by moderates Pete Buttigieg and Amy Klobuchar, he is far ahead of fellow progressive Elizabeth Warren.

But this race still has a long way to go.

Michael Bloomberg, the billionaire candidate, entered the Democratic race late, and has already spent about $200m of his own money on his campaign. But he didn't even register to take part in New Hampshire.

He’s adopting a different strategy to other candidates, and focusing on the states with big populations that come up later in the primary race. He may reach those states’ primaries far behind in the race, but he sees it as a price worth paying.

Image source, AFP

“The first two voting states, Iowa and New Hampshire, are among the most homogenous in the nation,”he wrote for CNN last month, external.

“While it's great that candidates reach out to voters in these states at every pancake breakfast and town hall around, what about African-American, Latino, Asian American, Pacific Islanders, and other voters in places like Detroit, Montgomery, Phoenix, and Houston? I've visited them all recently, and almost to a person, voters tell me the other campaigns have almost no presence in their cities.”

Two candidates have dropped out in the past hour - Andrew Yang and Michael Bennet - but there are nine Democrats still standing for president (from 28 who have stood at one point or another).

Here's who is left:

• Bernie Sanders, Vermont senator
• Elizabeth Warren, Massachusetts senator
• Joe Biden, former US vice-president
• Pete Buttigieg, former Indiana mayor
• Amy Klobuchar, Minnesota senator
• Michael Bloomberg, former New York City mayor
• Tulsi Gabbard, Hawaii congresswoman

• Tom Steyer, billionaire investor
• Deval Patrick, former Massachusetts governor

Hannah Long-Higgins
BBC News, New Hampshire

Helene Levin from Massachusetts says she has “absolutely, positively no doubt” Bernie Sanders can win the general election against Trump.”

Perhaps unlike other die-hard Bernie supporters, Levin sees potential in all of the final candidates.

Before we parted ways, she paused before saying, “Wouldn’t it be great if we could have a committee of five.”

Image source, Getty Images

Speaking to supporters at a rally in New Hampshire , Senator Elizabeth Warren says Bernie Sanders and Pete Buttigieg "had strong nights".

"I also want to congratulate my friend and colleague Amy Klobuchar for showing just how wrong the pundits can be when they count a woman out."

Warren herself is staring down a big disappointment from New Hampshire: early returns show her far behind the three front-runners, with about 11.5% of support thus far. She is not on track to win any delegates, but insists she will remain in the race.

Warren has now cast herself as a unity contender ready for a long slog, telling Democrats to resist a “rehash” of past battles and any candidate who is willing to “burn down the rest of the party.”

“We win when we come together,” she said.

Image source, Getty Images

Minutes after Andrew dropped out of the presidential race, Colorado Senator Michael Bennet has done the same.

His polling numbers have remained in single digits and he has not qualified for the televised Democratic debates since last summer.

The Denver Post reported , externalBennet received the support of only 96 voters in Iowa with 62% of the results in.

His key issues were economic reform agriculture and criminal justice reform.

We're now down to nine candidates left.

Zhaoyin Feng
BBC News Chinese, New Hampshire

Image source, AFP

Andrew Yang came from nowhere. When he first announced his presidential candidacy two years ago, he was a tech entrepreneur with no political fanfare. But he has gained a loyal following, nicknamed “Yang Gang”, with his unique centerpiece policy - universal basic income.

It was clear that Yang was a long-shot candidate, but the fact that he presented his big idea on the national stage counts as a success.

Though his self-deprecating use of racial stereotypes drew much criticism, Yang opened a new chapter of history as the first prominent Asian American presidential candidate.

“If Yang were white, I believe he’d be even more popular than Pete Buttigieg now, as Yang has unique ideas,” Bing Zhang, a Chinese American supporter of Yang told me. But, he said, Yang’s campaign had far exceeded the expectations of many supporters.

Yang successfully won support from both progressives and conservatives, from former supporters of Bernie Sanders to former Donald Trump voters.

Yang’s exit means the presidential race now has one fewer candidate from a racial minority. And the remaining presidential hopefuls will try to grab Yang’s relatively small but very young and energetic base.

Bernie Sanders has maintained his lead at 28% as nearly a quarter of the state's votes are in.

Pete Buttigieg also remains in second place with 23%of the vote- narrowly growing his lead over Amy Klobuchar who dropped to 20%.

Warren and Biden have done poorly, both receiving 9% thus far - which puts them on track to not win any delegates from the state.

Nick Bryant
BBC News. New Hampshire

Image source, Getty Images

One big story tonight is going to be the unexpectedly strong performance by Amy Klobuchar.

It's worth pointing out that in New Hampshire, independents - those registered as neither Democrats or Republicans - can vote in the primary.

Amy Klobuchar has been making her pitch to them, arguing that she's a moderate, pragmatic, centrist Democrat. And traditionally, these are the Democrats that produce winners in the general election

But the New Hampshire returns are looking less favourable for Joe Biden - another centrist Democrat. Electability was always his calling card, but we've seen the total collapse of that argument.

Jane O'Brien
BBC News, Concord, New Hampshire

It is a very, very, tight race.

What we didn't expect - though her supporters did - is that Amy Klobuchar seems to be surging.

I spoke to some of her supporters earlier and they said it was those last hours of campaigning - 24 hours before polls opened - that put her over the edge.

In New Hampshire, there are so many undecided voters and, this year, so many candidates. This is why it is such a volatile state.

"You know I am the math guy and I can see from the numbers that we are not going to win," Andrew Yang says to his supporters, announcing the suspension of his campaign.

"We have touched and improved millions of lives and moved this country we love in the right direction," he says.

Andrew Yang is speaking to his supporters in New Hampshire.

"We've accomplished so much together," he began.

"We have brought a message of humanity first and a vision of the economy and society that works for us and our families."

"We went from a mailing list that started with just my Gmail contact list to receiving donations from over 400,000 people around the country and millions more who supported this campaign," Yang added.

Yang said he was proud of his campaign giving $1,000 a month to 13 families across the country as well.

He said the suspension of his campaign was "bitterly disappointing", but "it shouldn't be" given all they have accomplished.