Will Joe Biden’s vaccination requirements hold up in court?

With the national coronavirus vaccination effort stalling amid hesitancy among roughly one-third of Americans, President Joe Biden has announced tougher measures aimed at getting more shots in arms and the delta variant under control. 

On Sept. 9, Biden set out three major steps to tighten vaccination requirements:

A mandate for federal employees to be vaccinated, with limited exceptions and no fallback option of undergoing regular testing. A separate mandate would cover federal contractors.

A vaccination mandate for employees at health care facilities that receive Medicare or Medicaid funding.

A requirement that private businesses with more than...