The seizure of classified U.S. government documents from Donald Trump’s sprawling Mar-a-Lago retreat spotlights the ongoing national security concerns presented by the former president, and the home he dubbed the Winter White House, some security experts say.
Trump is under federal investigation for possible violations of the Espionage Act, which makes it unlawful to spy for another country or mishandle U.S. defense information, including sharing it with people not authorized to…