Joe Biden has told the crowd that Kamala Harris will be a "historic president," adding that choosing her as his successor was the "best decision I've made in my whole career."
Talking of his decision to stand down from his role, he says: “It’s been the honour of my life time; I love the job, but I love my country more,” and promises to be “The most volunteer for the Harris Walz campaign”.
“Like many of our best presidents, she was also vice president,” he joked.
He has pleaded with voters to "save democracy," saying: "We saved democracy in 2020 and now we must save it again in 2024."
"History is in your hands, America's future is in your hands," he says. "Nowhere else in the world could a kid in a stutter grow up to sit behind the Resolute Desk in the Oval Office.
"That's because America is and always has been a nation of possibilities.
"Kamala and Tim understand that this nation must continue to be a place of possibilities."