Presidential transition of Barack Obama time of their election, President-elect Obama and Vice President-elect Joseph Biden were incumbent U.S. Senators from Illinois and Delaware respectively. In accordance with Article I, Section 6 of the United States Constitution, both were required to resign their respective Senate seats on or before January 20, 2009, in order to become President and Vice President. Obama resigned from the Senate effective November 16, 2008. Initially, it was thought that his replacement would be named by Illinois Governor Rod Blagojevich. Since the term for the seat expired in January 2011, it would come up for its normal election in 2010 with
Robert S. Rivkin Vice President and Deputy General Counsel. He stayed in that position until 2009. Appointed by President Barack Obama, Rivkin was sworn in as the 21st General Counsel of the United States Department of Transportation (DOT) on May 18, 2009, following unanimous confirmation by the United States Senate. A longtime Obama supporter and contributor, Rivkin first met Obama in 1991. While with DOT, Rivkin was counsel to Secretary Ray LaHood and served as DOT's Chief Legal Officer, with authority to resolve all legal questions concerning the Department's policies and programs and its over 55,000 employees and $78 billion budget. In 2009,