As truck drivers left (or got fired) in droves as a result of Bare-Shelves-Biden’s vaccine mandate, thus aggrevating the already crippling supply-chain crunch, Empty-Shelves-Joe apparently realized the political danger of escalating the supply-crisis even further and announced that most truck drivers are now exempt from the experimental vaccine mandate.
https://news.yahoo.com/trucking-industry-hails-huge-victory-151814639.html