Dwayne Johnson posted a video on his various social media accounts on Sunday (September 27).
Johnson asked the candidates how they would earn the respect of the American public.
"By doing what we say we're going to do, by keeping our word, by leveling with the American people, by taking responsibility," said Biden.
Johnson, star of "Jumanji" and the "Fast and Furious" franchise, said this is the first time he has publicly endorsed a presidential candidate, though he claims he has voted for both Democratic and Republican candidates in the past.
He also called Harris a "certified badass."
The full video can be seen at https://www.youtube.com/watch?v=THR4l0MJLu4