“Joe Biden can unite the American people because he dedicated his life to fighting for us. As president, he can build an America that lives up to our ideals ... I'll do whatever it takes to make him our commander in chief, "Harris wrote on Twitter.

The senator's website states that she is ready, in particular, to fight "Russian aggression."

“Turning our backs on the world is not our choice, the United States and its allies are faced with real security threats - from Russian aggression to international terrorism - and we must be forward-thinking and decisive and anticipate events, confronting these threats,” says the description of its foreign policy course.

Earlier, the Democratic presidential candidate Joe Biden chose Harris as the candidate for the vice-president of the United States.

Harris served as California's attorney general, he said.

Harris, 55, became a California Senator in 2017.