The difference between the Clinton emails and Trump's papers is in the investigation.The FBI’s warrant for its Mar-a-Lago raid invoked the Espionage Act which meant that we were always going to end up here. The focus on Clinton ally Jack Smith’s indictment has been the Espionage Act despite its obvious inappropriateness when it comes to a former president.The Wall Street Journal spells out the problem.The indictment levels 37 charges against Mr. Trump that are related to his handling of classified documents, including at his Mar-a-Lago club, since he left the White House. Thirty-one of the counts are for violating the...