The White House said it will provide regular updates on the president's status "as he continues to carry out the full duties of the office while in isolation."
He was set to speak at a UnidosUS conference Wednesday.
“He is vaccinated and boosted and he is experiencing mild symptoms,” the White House said in a statement. “He will be returning to Delaware where he will self-isolate and will continue to carry out all of his duties fully during that time.”