What was Joseph Biden's job?

Joseph Biden served as the 46th President of the United States, having taken office on January 20, 2021. Before his presidency, he had a long career in politics, including serving as the Vice President under Barack Obama from 2009 to 2017. Additionally, Biden was a U.S. Senator from Delaware for 36 years, from 1973 to 2009, where he held various leadership roles and was involved in significant legislative efforts.