An emotional US President Joe Biden passed the torch to Democratic nominee Kamala Harris with a hug on Monday, saying he gave everything for his country in a bittersweet farewell speech at the party's convention in Chicago.
"America, America, I gave my best to you," the 81-year-old Biden said, quoting a patriotic hymn during a nearly hour-long address that ran through his achievements while urging voters to back his vice president against Donald Trump in November.
