WASHINGTON — The Supreme Court on Thursday blocked the Biden administration's rule requiring larger businesses to ensure that workers receive the Covid vaccine or wear masks and get tested on a weekly basis. But the court said a separate mandate requiring vaccinations for an estimated 20 million health care workers can be enforced. The workplace rule, announced last fall by the Occupational Safety and Health Administration, required companies with 100 or more employees to ensure that their workers either get vaccinated or wear masks and show negative Covid test results at least once a week. The rule would have covered nearly 80 million American workers, and OSHA estimated it would save over 6,500 lives and prevent 250,000 hospitalizations in the next six months. "The bottom line: We're going to protect vaccinated workers from unvaccinated coworkers," President Joe Biden said in announcing the requirement. Announced in November, the rule was immediately challenged by a group of red states and businesses that said the government lacked the power to issue such a sweeping mandate. Lower courts initially blocked the requirement, but a later ruling allow . . . read the full article here.