MIAMI — When teams of FBI agents knocked on the door of Mar-a-Lago on Monday, they were were looking for classified documents that former President Donald Trump had allegedly taken with him when he left the White House, a source familiar with the Palm Beach raid said. The FBI carried out a search warrant at the posh club owned by Trump, but it was not related to the Justice Department’s investigation of the Jan. 6, 2021, riot at the U.S. Capitol, the source told the Miami Herald. In a lengthy statement, Trump called the raid at his residence unnecessary and “unannounced.” He said the law enfor...