CORONAVIRUS | The number of confirmed coronavirus cases in the United States pushed past three million on Tuesday, according to a Reuters tally, roughly equal to the population of Nevada, stoking fears that hospitals will be overwhelmed.

The United States has the highest known numbers of both Covid-19 cases and deaths in the world. More than 130,000 Americans have died from the disease, a toll that experts warn will likely surge following recent record spikes in case numbers in many states...