Obamas Greet Mexican Counterparts As They Arrive For State Dinner

WASHINGON - MAY 19: (AFP OUT) U.S. President Barack Obama and first lady Michelle Obama welcome Mexican President Felipe Calderon and his wife Margarita Zavala to the White House for a state dinner May 19, 2010 in Washington, DC. Earlier in the day, Calderon, in a rare rebuke for a foreign leader on U.S. soil, assailed Arizona's tough new immigration law as "discriminatory," a sentiment echoed by Obama during a joint Rose Garden news conference. (Photo by Gary Fabiano-Pool/Getty Images)