Here’s what you need to know:As the virus devastates tax revenues, states must follow balanced-budget laws.In swing states, reopening deepens the political divide.The White House threatens to veto a $3 trillion relief bill.The virus killed a police officer. His town lined the streets to mourn him.Even talking can propel the droplets that spread the virus, a study suggests.The F.D.A. says a test used by the White House may produce false negatives.Honolulu extends a stay-at-home order but loosens the restrictions.

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