NBC Boston’s Victoria Warren reported that after Sen. Bernie Sander (I., Vt.) gave his official endorsement of presumptive Democratic nominee Hillary Clinton at a rally Tuesday, people were leaving the event and were visibly upset.
"After Bernie Sanders made his statement several people started leaving," Warren said. "Some people visibly upset as they were leaving today."
The campaign rally was held in New Hampshire, where Sanders pummeled Clinton in the state’s primary earlier this year. Sanders received 60.4 percent of the vote and 15 delegates while Clinton received 38 percent and only nine delegates.
"Secretary Clinton has won the Democratic nominating process and I congratulate her for that. She will be the Democratic nominee for president and I intend to do everything I can to make certain she will be the next president of the United States," Sanders said in his endorsement.
Sanders has turned his focus from the presidential campaign towards building a more progressive Democratic Party platform at the party's convention in Philadelphia, Pa at the end of the month.
An NBC News/SurveyMonkey poll released the day of the rally showed that Clinton has a narrow lead of three points over presumptive Republican nominee Donald Trump in the general election.
The poll comes after the FBI and Department of Justice decided not to pursue criminal charges against the former secretary of state for mishandling classified information and for having a private email server.
Eighty-two percent of poll respondents said that it was inappropriate for Clinton to use a private email server and 56 percent said that they disagree with FBI Director James Comey’s recommendation not to prosecute Clinton.