What is the Trump classified documents case about?

Former US President Donald Trump’s second indictment concerns accusations that he mishandled classified documents in a case believed to be his most serious legal threat as yet.

Trump announced the indictment on his Truth Social platform, reiterating that he was “innocent.” He said he had been summoned to appear at the federal courthouse in Miami on Tuesday. It marks the first time a former president has been indicted in a federal court.

Though the indictment remains sealed, media reports…