Photo Ed: The historic U.S. elections--Barack Obama's campaign

Democratic candidate for vice president Sen Joe Biden acknowledges his supporters during his final campaign rally before election day Monday Nov. 3, 2008, in Philadelphia. (AP Photo/Bradley C Bower)Â

 

U.S. Democratic presidential nominee Senator Barack Obama acknowledges the crowd during his final campaign rally before the U.S. presidential election in Manassas, Virginia Nov. 3, 2008. (REUTERS/Jason Reed)

U.S. Democratic presidential nominee Senator Barack Obama is pictured among thousands of supporters during his final campaign rally before the U.S. presidential election in Manassas, Virginia Nov. 3, 2008. (REUTERS/Jason Reed )Â

 

A supporter cheers for U.S. Democratic presidential nominee Senator Barack Obama (bottom) during his final campaign rally before the U.S. presidential election in Manassas, Virginia, Nov. 3, 2008.  (REUTERS/Jason Reed)

 

On the eve of the US presidential elections, Democratic presidential candidate Illinois Senator Barack Obama arrives for his final campaign rally of the 2008 presidential race in Manassas, Virginia, Nov. 3, 2008. (AFP PHOTO/Emmanuel Dunand)

Democratic presidential candidate Sen. Barack Obama  speaks at a rally the night before election day, in Manassas, Va. on Monday, Nov. 3, 2008.  (AP Photo/Jacquelyn Martin)

 

Michelle Obama, wife of Democratic presidential nominee U.S. Sen. Barack Obama, speaks during a campaign rally at the College of Southern Nevada Nov. 3, 2008 in North Las Vegas, Nevada. With less than 24 hours before Election Day, Michelle Obama is campaigning for her husband in the battleground states of Nevada and Colorado before joining him in Illinois.   (Ethan Miller/Getty Images/AFP)Â