U.S. President Barack Obama (R) greets House Minority Leader Nancy Pelosi (D-CA) (L) as he arrives at the senate carriage entrance for swearing-in ceremonies at the U.S Capitol in Washington, January 21, 2013.   REUTERS/Jonathan Ernst

Photo by: JONATHAN ERNST

U.S. President Barack Obama (R) greets House Minority Leader Nancy Pelosi (D-CA) (L) as he arrives at the senate carriage entrance for swearing-in ceremonies at the U.S Capitol in Washington, January 21, 2013. REUTERS/Jonathan Ernst