Meet the Press NOW — March 20

President Trump abruptly calls off trade negotiations with Canada. Defense Secretary Hegseth announces the Pentagon will ramp up its military presence around Venezuela as tension escalate. Rep.-elect Adelita Grijalva (D-Ariz.) joins Meet the Press NOW as she waits to be sworn more than a month after winning the special election.

Sen. Catherine Cortez Masto (D-Nev.) defends working with Republicans to reopen the government. Ryan Reilly shares NBC News’ reporting on the stalled probe of Trump rival Sen. Adam Schiff (D-Calif.). President Trump takes questions during a homeland security task force roundtable as concerns arise over his use of the military to combat drug cartels and crime.

Dr. Mehmet Oz, administrator of the Centers for Medicare and Medicaid Services, joins Meet the Press NOW to talk about the Affordable Care Act and says President Trump has a plan to replace it. Rep. Adam Smith (D-Wash.), the ranking member on the House Armed Services Committee, reacts to the canceled meeting between President Trump and Russian President Vladimir Putin in Budapest. NBC News Senior Homeland Security Correspondent Julia Ainsley reports on new ICE agent recruits who were placed into the agency’s training program without full vetting.

President Trump hosts congressional Republicans at the White House as the government shutdown hits the 3-week mark. Rep. James Walkinshaw (D-Va.) joins Meet the Press NOW to discuss the impasse over government funding and the impact the shutdown is having on constituents in his district. NBC News National Political Correspondent Steve Kornacki analyzes the latest polls out of the New York City mayoral race.

Americans are beginning to feel the impact of the government shutdown which is now the third-longest in U.S. history. A federal appeals court rules President Trump can deploy National Guard troops to the streets of Portland. Tensions flare in the Gaza Strip as both Israel and Hamas accuse the other of violating the ceasefire deal.