The FBI is investigating political contributions made by former employees of Postmaster General Louis DeJoy at a previous business, a spokesman said Thursday. Mark Corallo, a spokesman for DeJoy, confirmed the existence of the investigation in a statement to The Hill but stressed that the postmaster general did not knowingly violate any laws. “Mr. DeJoy has learned that the Department of Justice is investigating campaign contributions made by employees who worked for him when he was in the private sector,” Corallo said. “He has always been scrupulous in his adherence to the campaign contribution laws and has never knowingly violated them.