Trump allies lose debate over police protests and Kaepernick kneeling

MSNBC's Ari Melber fact-checks the political debate over "peaceful" protests and the Black Lives Matter movement and explores historical context for Colin Kaepernick's kneeling activism in this special report. Melber documents the contradictions of some current protest critics, and reports on America's long history of retaliating against peaceful civil rights protests as a prism for understanding Kapernick's public vindication, even as the police brutality he warned about continues.