Political views aside, a serious industry deserves a serious regulator, a public servant of proven integrity who lives by at least a baseline standard of propriety.
Scott Pruitt is none of those things. He may be a handy political ally, but his conduct in office at the EPA, marked by an unending string of tawdry scandals, is anathema to everything the auto industry would expect of its own employees.
He should resign before he embarrasses the auto industry, and the nation, further.