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
First inauguration of Barack Obama parade. President Barack Obama and First Lady Michelle Obama attended 10 official inaugural balls during the evening of January 20, 2009. Barack Obama wore a new tuxedo made by Hart Schaffner Marx, a Chicago-based menswear company. He also wore a white bow tie, instead of the conventional black. Traditionalists considered this a fashion faux pas, as a white tie is conventionally only worn with a white waistcoat and tails. Michelle Obama wore a white, one-shouldered, sleeveless gown designed by 26-year-old New York-based designer Jason Wu, breaking with the recent practice set by former first ladies Laura Bush and Hillary Clinton,