By MARK SHERMAN and JESSICA GRESKO
WASHINGTON (AP) — The Supreme Court has stopped a major push by the Biden administration to boost the nation’s COVID-19 vaccination rate, a requirement that employees at large businesses get a vaccine or test regularly and wear a mask on the job. At the same time, the court is allowing the administration to proceed with a vaccine mandate for most health care workers in the U.S. The court’s orders Thursday during a spike in coronavirus cases was a mixed bag for the administration. The court’s conservative majority concluded the administration overstepped its authority by seeking to impose the Occupational Safety and Health Administration’s vaccine-or-test rule on U.S. businesses with at least 100 employees.