https://www.whitehouse.gov/briefing-room/presidential-actions/2021/09/09/executive-order-on-requiring-coronavirus-disease-2019-vaccination-for-federal-employees/
https://crsreports.congress.gov/product/pdf/IN/IN11764
https://www.whitehouse.gov/covidplan/
who made available for sick and elderly who felt they needed it
vs
who mandated