Presumptive Democratic presidential nominee Hillary Clinton has received the much awaited endorsement from her former rival Bernie Sanders.

Sanders, a senator and former Democratic presidential candidate appeared alongside Clinton at a campaign event in New Hampshire.

Sanders hopes to have a large influence in the Democratic platform

“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,” he said.

“This campaign is about the needs of the American people and addressing the very serious crises that we face. And there is no doubt in my mind that, as we head into November, Hillary Clinton is far and away the best candidate to do that.”

Clinton thanked her supporters and credited Sanders for bringing new Americans into the political process, saying “I’m proud to be fighting behind you. It’s a time for all of us to stand together.”

Clinton spoke on a number of issues, including student debt, Wall Street, raising the minimum wage, the US tax code, reforming policing, strengthening the middle class, climate change, health care and reducing gun violence.

Sanders supporters have largely decided to support Clinton in an effort to stop presumptive Republican nominee Donald Trump from winning the White House.

Sanders has pressed Clinton to support his views on higher education, health care and the minimum wage.

“It is no secret that Hillary Clinton and I disagree on a number of issues. That’s what this campaign has been about. That’s what democracy is about,” said Mr Sanders.

“But I am happy to tell you that… there was a significant coming together between the two campaigns and we produced, by far, the most progressive platform in the history of the Democratic Party.”

Trump, who has been trying to court Sanders supporters, reacted to the development via tweeter, saying that Sanders has “totally sold out to Crooked Hillary Clinton. Fans angry!”