As the president tells the nation he told U.S. forces headed to the border to fire on any migrants throwing rocks, the focus of Robert Mueller's Russia probe becomes what Roger Stone knows, and when did he know it. Plus, we're now five days out until the midterm elections. Michael Schmidt, Frank Figliuizzi, Cynthia Alksne, Jeremy Bash, A.B. Stoddard, Jill Colvin, Tia Mitchell, Steve Kornacki, and Mike Murphy all join.