MSNBC's Ari Melber hosts "The Beat" on Wednesday, March 5, and reports on The Supreme Court's rejection of Donald Trump's bid to freeze foreign aid, tariffs and RFK Jr.'s handling of the measles outbreak in Texas. Plus, listen to a fired veteran confront Elon Musk. Chai Komanduri, Adam Mulvey and John Flannery join.

MSNBC's Ari Melber hosts "The Beat" on Friday, March 7 and reports on tensions between Elon Musk and Trump's cabinet, Trump's string of legal losses as the Supreme Court rejects his bid to avoid paying USAID contractors, and market instability amid tariff uncertainty. Marty Baron, Joyce Vance, and Bryan Lanza join.