Contrary to the unfair — and misguided — perception, communities of color care more about the environment than their white counterparts.

Too often, critics misconstrue dog whistling as a form of personal bigotry, as Hillary Clinton did last night, and that misses the cold calculation of expressing racially loaded ideas in coded terms.

Watch highlight clips from Bill's interview with author and legal scholar Ian Haney López on the origins of dog whistle politics and how it may be used in future elections.