Meet the Press NOW – September 19

White House Correspondents' Dinner shooter Cole Tomas Allen is charged with attempting to assassinate President Trump as new details emerge about the incident and his motivations. Expert in extremism and polarization Cynthia Miller-Idriss talks about the rise in political violence. President Trump meets with top national security officials to discuss the future of the war with Iran after the latest negotiations were abruptly canceled.

Kristen Welker speaks with acting Attorney General Todd Blanche, Sen. Thom Tillis (R-N.C.) and Rep. Ro Khanna (D-Calif.) after an armed man rushed a security checkpoint at the White House Correspondents’ Association dinner and exchanged gunfire with law enforcement. Leigh Ann Caldwell, Lanhee Chen, Adrienne Elrod and Melanie Zanona join the roundtable.

President Trump dispatches Special Envoy Steve Witkoff and his son-in-law Jared Kushner to Islamabad, Pakistan for talks with Iranian officials. Former Trump White House attorney Ty Cobb reacts to the Department of Justice dropping its investigation into Federal Reserve Chair Jerome Powell. Rep. María Elvira Salazar (R-Fla.) joins Meet the Press NOW to discuss DHS funding, immigration reform and the possibility of redistricting in Florida.

President Trump speaks about his affordability agenda at the White House as new polls show some Americans disapprove of his handling of the economy. As part of the NBC News’ Common Ground series, Meet the Press moderator Kristen Welker sits down with Sen. John Fetterman (D-Pa.) and Sen. Katie Britt (R-Ala.).

Sen. Kevin Cramer (R-N.D.) joins Meet the Press NOW to discuss Kevin Warsh, President Trump’s nominee for Federal Reserve Chair. Sen. Catherine Cortez Masto (D-Nev.) says moderates are the path to a Democratic Senate majority. NBC News Chief Data Analyst Steve Kornacki breaks down how a new map in Virginia gives Democrats a narrow edge.