US Vice President Biden and President Obama wave to participants of the Mayors Conference at the White House in Washington

 
US Vice President Biden and President Obama wave to participants of the Mayors Conference at the White House in Washington
U.S. President Barack Obama and Vice President Joe Biden (R) wave to the mayors of U.S. cities in the audience prior to addressing the U.S. Conference of Mayors in the East Room of the White House in Washington January 21, 2010. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS IMAGES OF THE DAY)