This is the first episode of "24" that was originally aired when George W. Bush was not the President of the United States of America (Barack Obama was inaugurated 1/20/09). During that span there were six fictional U.S. Presidents on the show: David Palmer, John Keeler, Charles Logan, Wayne Palmer, Noah Daniels and Allison Taylor. In addition, there was a seventh, off-screen, President, Hal Gardner, who presumably took office when Charles Logan was taken into custody.