MANCHESTER, N.H. — Joseph R. Biden Jr.’s backers roared supportive slogans and banged on drums as they awaited his arrival outside Southern New Hampshire University Arena. Senator Bernie Sanders was welcomed by die-hard fans ready to cheer seemingly every sentence he uttered. Mayor Pete Buttigieg and Senator Cory Booker delivered one applause line after the next.

But no one was embraced at the New Hampshire Democratic Party’s state convention Saturday quite like Elizabeth Warren.

The Massachusetts senator took the stage to a standing ovation that lasted around two minutes, and the thunderous applause that frequently interrupted her speech was amplified by the inflatable noisemakers that had been distributed to the crowd. “Win with Warren!” attendees yelled.

“There is a lot at stake, and people are scared,” she said. “But we can’t choose a candidate we don’t believe in because we’re scared.”