Democratic politician Joe Biden became the 46th president of the United States of America on January 20, 2021, beating out then-president Donald Trump. He attempted to fend off a Trump challenge in the 2024 election, but stepped down after a disastrous debate performance that left many questioning his mental acuity. He was succeeded in the fight by his VP, Kamala Harris, who lost to Trump. Biden had previously served as the 47th vice-president of the United States under Barack Obama from 2009 to 2017, and was a United States Senator for Delaware from 1973 to 2009.