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By White House timeline, Pence possibly exposed to Covid by Trump

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Dr. Robert Wachter, chair and professor at the UCSF Department of Medicine, explains to Rachel Maddow that people with Covid-19 are infectious a day or two before they show symptoms, so according to the White House timeline that puts Mike Pence at an event with Donald Trump two days before Trump's symptoms, Pence should be quarantining to guard against exposing others.