"Black Lives Matter" leader DeRay Mckesson on Rudy Giuliani and "All Lives Matter"

"Black Lives Matter" leader DeRay Mckesson spoke to Yahoo Global News Anchor Katie Couric after being released from jail in Baton Rouge, Louisiana. He called former New York City mayor Rudy Giuliani's comments about the "Black Lives Matter" movement "a disgrace and an embarrassment to an understanding of racial inequity and definitely racial justice." He also weighed in on those who say "all lives matter."