A cardiologist from the Mayo Clinic has spoken up about possible serious side effects of a drug that has been touted by President Trump as a possible treatment for coronavirus. Katy Tur talks to Dr. James Hamblin of the Yale School of Public Health about the drug. Aired on 4/8/2020. » Subscribe to MSNBC: MSNBC delivers breaking news, in-depth analysis of politics headlines, as well as commentary and informed perspectives. Find video clips and segments from The Rachel Ma
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