Chief of Staff Rahm Emmanuel makes a funny gesture ahead of the inauguration of Barack Obama as the 44th President of the United States of America on the West Front of the Capitol January 20, 2009.
Presidential hopeful Al Gore, right, smiles closely with his running mate Joseph Lieberman at a rally August 9, 2000, in Lieberman's hometown of Stamford, Ct.
Republican presidential candidate, former Speaker of the House Newt Gingrich laughs as he participates in a debate sponsored by CNN and the Republican Party of Arizona at the Mesa Arts Center February 22, 2012 in Mesa.
Democratic presidential hopefuls former U.S. Senator John Edwards (L) (D-NC) and Sen. Barack Obama (D-IL) point to supporters and family members in the audience after a televised debate at Saint Anselm College January 5, 2008.
Republican presidential hopeful Gov. George W. Bush jokes around with two unidentified technicians in the TV studio just prior to the GOP debate Thursday, Jan. 6, 2000.
U.S. Sen. Max Baucus (D-MT) reacts during a rally to support the enactment of the Medicare bill July 15, 2008 on Capitol Hill in Washington, DC.
Former New York City Mayor Rudy Giuliani laughs on day three of the Republican National Convention (RNC) at the Xcel Energy Center on September 3, 2008.
Callista Gingrich, wife of Republican presidential candidate and former Speaker of the House Newt Gingrich, prepares to read a children's book to young patients on January 20, 2012 in Charleston, South Carolina.
Democratic presidential candidate U.S. Senator John Kerry (D-MA) (L) goes eye to eye with show host Jon Stewart during a visit to the 'The Daily Show with Jon Stewart' August 24, 2004 in New York City.
U.S. President George W. Bush (L) pauses to embrace a person dressed as the Easter Bunny during the annual Easter Egg Roll on the South Lawn of the White House March 24, 2008 in Washington, DC.