Jeffrey Bossert Clark, acting assistant attorney general of the DOJ’s Civil Division, says, “Walmart had the responsibility and the means to help prevent the diversion of prescription opioids.”

WASHINGTON, DC – JUNE 28: Jeffrey Bossert Clark, nominee to be an assistant Attorney General, Environment and Natural Resources Division, looks on during a Senate Judiciary Committee nomination hearing concerning judicial nominations, on Capitol Hill, June 28, 2017 in Washington, DC. (Photo by Drew Angerer/Getty Images)