They Are Trump’s Aides and Lawyers. Now They Could Be Trial Witnesses.

Throughout the inquiry into former President Donald J. Trump’s handling of classified material, his insular world at Mar-a-Lago was rife with intrigue, anxiety and competing motives as investigators sought testimony and evidence from some of his closest aides, advisers, lawyers and even members of his Secret Service detail.

Now, with Mr. Trump under federal indictment and with people who currently, or used to, work for him seen as potential…