US President George W. Bush (center R) listens as Wilfred McClay (L), a history professor at the University of Tennessee in Chattanooga, speaks regarding former US President Thomas Jefferson during an event honoring his 265th birthday in the East Room of the White House in Washington, DC, on April 14, 2008. Jefferson was the third US president from 1801-1809.
US President George W. Bush (2nd L) sits alongside First Lady Laura Bush as they listen to an academic lecture during an event in honor of former US President Thomas Jefferson's 265th birthday in the East Room of the White House in Washington, DC, on April 14, 2008. Jefferson was the third US president from 1801-1809.
WASHINGTON - APRIL 11: Historical performers in the roles of former presidents Thomas Jefferson and James Monroe pose for photographs with sisters Liz and Kate Hutzel of Laffayette, Indiana, during the grand opening of The Newseum April 11, 2008 in Washington, DC. The 250,000-square-foot interactive news museum is located on Pennsylvania Avenue between the U.S. Capitol and the White House.
In this Wednesday April 9, 2008 file photo, Shelby Gueory, 13, left, Meridian Witt, 13, and Haley Irish, 13, all of Washington, explore an interactive exhibit at the "Library of Congress Experience" in Washington. The exhibit, located in the Library of Congress' Thomas Jefferson building, will offer visitors the opportunity to explore historical treasures through interactive technology.
A touch-screen voting screen displays the field of eligible Democratic candidates in Virginia's presidential primaries, including Illinois Senator Barack Obama and New York Senator Hillary Clinton, at the Thomas Jefferson Center, a polling place in Arlington, Virginia, on February 12, 2008. Virginia, Maryland and Washington, DC, hold their primaries today.
In this image released by the State Department, the reverse side of the Great Seal of the United States is seen. The keepers of the Great Seal of the United States is the nation's stamp of authority, sovereignty and power, gracing our cash and embossing the most important of documents from its home at the State Department, which has held it since the days of Thomas Jefferson, the first secretary of state.