I'm Joseph Robinette Biden Jr. (/ˈbaɪdən/ ⓘ BY-dən; born November 20, 1942) i'm an American politician who is the 46th and current president of the United States. A member of the Democratic Party, I previously served as the 47th vice president from 2009 to 2017 under President Barack Obama and represented Delaware in the United States Senate from 1973 to 2009.