Former President Donald Trump heads to Miami to be formally arraigned Tuesday after a federal grand jury indicted him on 37 counts, stemming from his alleged handling of more than 300 classified documents that were found in his primary residence in Florida.

Trump's appearance at the Wilkie D. Ferguson U.S. Courthouse will mark his second appearance as a criminal defendant in three months. He was arraigned on April 4 in a New York courthouse on charges of falsifying business records related to hush money payments.

Aileen Cannon, a U.S. district judge appointed by Trump to the federal bench, will oversee the case: guiding how quickly it moves to trial, the selection of jurors and what evidence can be presented to the jury. Magistrate Judge John Goodman will oversee the arraignment.