A coalition of business groups—including key supply chain stakeholders representing industries like foodservice, trucking, and warehousing—have called on the Biden administration for flexibility in its COVID-19 private employer vaccine mandate or risk exacerbating the supply chain crunch. A Nov. 3 open letter, signed by nearly 100 groups—such as the Agriculture Transportation Coalition, American Trucking Associations, and the National Retail Federation—urges the Biden administration to take a series of steps to fix the supply chain crisis gripping the economy and pushing inflation to a high not seen in decades. “While we represent different industries, we share the common burden of current supply chain disruptions, which are driving up prices and leading to a growing shortage of goods in the United States, with the holidays just around the corner,” the coalition wrote. The mandate, announced by President Joe Biden in September, was released to the public on Nov. 4. It requires employers with …