In a November 2016 editorial, The Atlantic warned that Donald Trump would be a threat to the republic—and a danger to democracy itself. In the course of making our case that he was unfit to command, we called him “a demagogue, a xenophobe, a sexist, a know-nothing, and a liar.”

That was an understatement, argues editor in chief Jeffrey Goldberg. In a new Atlantic Argument, Goldberg elucidates The Atlantic’s decision to analyze 50 of the most norm-bending, destructive, and improbable events of Trump’s presidency to date. “This is not a partisan exercise,” Goldberg says in the video. “Our list is comprised of incidents that we can’t imagine happening in any other presidency, Republican or Democratic.”

Read more of The Atlantic's coverage of Trump's "Unthinkable" presidency.