President Barack Obama, surrounded by the family of Cesar Chavez and leaders of the United Farm Workers that Chavez co-founded, signs a proclamation in the Oval Office designating March 31, 2010, which would have been his 83rd birthday, as Cesar Chavez Day.

President Barack Obama, surrounded by the family of Cesar Chavez and leaders of the United Farm Workers that Chavez co-founded, signs a proclamation in the Oval Office designating March 31, 2010, which would have been his 83rd birthday, as Cesar Chavez Day.