When the next pandemic sweeps the United States, health officials in Ohio won’t be able to shutter businesses or schools, even if they become epicenters of outbreaks. Nor will they be empowered to force Ohioans who have been exposed to go into quarantine. State officials in North Dakota are barred from directing people to wear masks to slow the spread. Not even the president can force federal agencies to issue vaccination or testing mandates to thwart its march.