Cassidy Hutchinson’s testimony to the January 6th committee on Tuesday was extraordinary. Hutchinson, formerly a senior aide to White House chief of staff Mark Meadows, had a ringside seat to the attempted coup, and over the course of several hours, she described President Donald Trump’s insistence that armed supporters be allowed to attend his rally; his desire to join the violent mob himself; his attempt to literally take the wheel of the motorcade; his alleged assault on the Secret Service officer who stopped him; and Trump’s support for the protesters’ chants of “hang Mike Pence.” Hutchinson is just 25—Washington has an unusual propensity for piling its biggest responsibilities on either octogenarians or twentysomethings—and her in-person appearance was all the more notable in light of the absence of her boss, the 62-year-old Meadows, who declined to cooperate with a congressional subpoena, but did publish a book.