Trump Calls Rep. Schiff 'Treasonous;' Bernie Sanders Undergoes Heart Procedure : The NPR Politics Podcast President Trump is ramping up his rhetoric as he attacks Democratic Representative Adam Schiff who is helping lead the impeachment inquiry. Plus, Senator Bernie Sanders undergoes a heart procedure and cancels all of his campaign events indefinitely. This episode: White House correspondent Tamara Keith, political correspondent Asma Khalid, election security editor Phil Ewing, and national political correspondent Mara Liasson. Email the show at email@example.com. Find and support your local public radio station at npr.org/stations.