Baltimore Bridge Collapse: Investigators to Probe Whether Dirty Fuel Played Role
Plus: NBC News cuts ties with former Republican National Committee chairwoman Ronna McDaniel. And, Merck\u2019s $11.5 billion bet on a new drug is a step closer to paying off after receiving FDA approval. Luke Vargas hosts.\xa0\xa0\n\n\n\nListening on Google Podcasts? Here\u2019s our guide for switching to a different podcast player.\xa0\n\n\n\nLearn more about your ad choices. Visit megaphone.fm/adchoices