The slogan 'Yes we can!'-in the form 'Si Se Puede!'-predates Obama's 2008 presidential campaign by more than four decades. It was the coinage of the United Farm Workers' cofounder Cesar Chavez: a man who led his organization to many victories and secured collective bargaining rights for California farm workers. A charismatic leader who continues to inspire much controversy, Chavez built the United Farm Workers into a major force and a voice for the Mexican-American community, previously excluded from national politics.