Kristen Welker has exclusive interviews with Reps. Thomas Massie (R-Ky.) and Ro Khanna (D-Calif.) as President Trump says a deal with Iran has been “largely negotiated,” with final terms still being worked out. Former Sec. Jeh Johnson, Andrea Mitchell, Marc Short and Amy Walter join the roundtable. Girls who Code Founder Reshma Saujani joins for a Meet the Moment conversation.