Senator Bernie Sanders won New Hampshire’s Democratic primary last night, with Pete Buttigieg and Senator Amy Klobuchar close behind in second and third. After two candidates once considered front-runners, Senator Elizabeth Warren and former Vice President Joe Biden, finished toward the back of the pack, we consider what Mr. Sanders’s win means for the rest of the race for the Democratic nomination. Guest: Alexander Burns, a national political correspondent for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily.  Background reading: With his New Hampshire win, Mr. Sanders tightened his grip on the Democratic Party’s liberal wing, benefiting from a field that has divided moderate voters.Here are the full results. Unlike in Iowa, where we have yet to declare an official winner, we can confidently say Mr. Sanders won in New Hampshire in a tight race with Mr. Buttigieg.