Episode 103

Texas Attorney General Ken Paxton has won the Republican nomination for U.S. Senate. MS NOW's Ari Melber reports on how his victory is fueling GOP fears within the party. Rev. Al Sharpton and longtime Texas-based political strategist Mark McKinnon join. Plus, acclaimed astrophysicist Neil deGrasse Tyson joins to discuss aliens, the universe, and his new book, "Take Me to Your Reader: Perspectives on Your First Alien Encounter."