Court of Appeals for the Tenth Circuit from 2006 to 2007, then for Chief Justice John Roberts of the U.S. Court of Appeals for the Sixth Circuit. In June 2017, Hawley declared that Missouri experienced filed fit in state court from 3 main drug organizations, Endo Health Solutions, Janssen Pharmaceuticals, and Purdue Pharma, for allegedly hiding the risk of prescription painkillers and contributing to the opioid epidemic.