Cannon, a 42-year-old former federal prosecutor appointed by Trump to the bench in 2020 late in his presidency, also neglected to swear in the prospective jury pool - an obligatory procedure in which people who may serve on the panel pledge to tell the truth during the selection process. This error forced Cannon to re-start jury selection before the trial ended abruptly with defendant William Spearman pleading guilty as part of an agreement with prosecutors.

Cannon’s decision to close the courtroom represents “a fundamental constitutional error,” said Stephen Smith, a professor at the Santa Clara School of Law in California. “She ignored the public trial right entirely. It’s as though she didn’t know it existed.”