Barack Hussein Obama, Jr., a Democrat, is President of the United States. He was the only African-American currently serving in the U.S. Senate, the fifth in U.S. history and the third since Reconstruction. He was elected President of the United States on November 4, 2008, after winning the Democratic Party nomination. On November 4,2008 he was elected to the Presidency along with Joe Biden, becoming the first African American President of the U.S. On November 16, 2008, he resigned from his seat in the U.S. Senate. On January 20th, 2009 he became the 44th President of the United States of America.