You know the media is contorting itself into pretzels when you see them refer to Zimmerman as a "white Hispanic."
Had Zimmerman done covered doing something the media and the liberals approve of - such as demonstrating against an anti-illegal immigration bill at a La Raza rally - we would not see "white" coupled with "Hispanic" in the media reports about his involvement. He would magically become a garden-variety "Hispanic."
White is his race. Hispanic is his ethnicity. There are black Hispanics too, though the majority are white.