The dash to overnight millennial celebrity can take abrupt detours. Rep. Alexandria Ocasio-Cortez, the democratic socialist from the Bronx in New York City, was propelled from an anonymous existence as a bartender after her upset victory in 2018 straight onto magazine covers, late-night TV and the top of every partisan love-hate list in America. It made her perhaps the most exposed and fixated-on House freshman in history. Today, the youngest woman ever elected to Congress - known simply as AOC - owns another distinction, this one far grimmer: She represents the nation’s most devastated hot zone of the coronavirus outbreak....