Rutgers University History Professor Mark Bray joins The Weekend: Primetime to share why he and his family fled the U.S. over safety concerns amid the Trump administration's broad attacks on Antifa. He explains where the term originated from and why it's being used as a "catch-all" phrase by government officials and those on the right. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/