President Barack Obama watches Vice President Joe Biden from the Butler’s Pantry as Samantha Tubman, Deputy Associate Director of the White House Social Office, listens for the queue introducing the President to a bipartisan group of governors in the State Dining Room of the White House, Feb. 28, 2011. Brian Mosteller, Deputy Director of Oval Office Operations, is pictured at left.

President Barack Obama watches Vice President Joe Biden from the Butler's Pantry as Samantha Tubman, Deputy Associate Director of the White House Social Office, listens for the queue introducing the President to a bipartisan group of governors in the State Dining Room of the White House, Feb. 28, 2011. Brian Mosteller, Deputy Director of Oval Office Operations, is pictured at left.