A Department of Defense adviser resigned, effective immediately, from the military's science board citing what he believed to be a violation of conduct from Defense Secretary Mark Esper. In his resignation letter, James Miller Jr., the former under secretary of defense for policy from 2012 to 2014, recalled that he swore an oath of office to "support and defend the Constitution of the United States ... and to bear true faith and allegiance to the same," similar to what the defense secretary had done before he took office. "On Monday, June 1, 2020, I believe that you violated that oath,"...