U.S. coronavirus cases surpass 4 million

The number of U.S. coronavirus cases exceeded 4 million on Thursday, Johns Hopkins data illustrates.

Why it matters: President Trump is pushing to reopen schools and return the U.S. economy to pre-pandemic normalcy. But infection numbers are rising and coronavirus hospitalizations have surged nationwide, adding to the pressure of a health care system that's been under immense strain for months. More than 143,000 Americans have died to date from COVID-19.

Go deeper: In photos: Life in the era of the coronavirus pandemic