Did Trump know what was about to happen Jan. 6?

These facts — along with Trump’s Jan. 6 speech in which he told supporters, “If you don’t fight like hell, you’re not going to have a country anymore,” “You’ll never take back our country with weakness” and “When you catch somebody in a fraud, you’re allowed to go by very different rules” — ought to be evidence enough, we think, to convict him in his imminent impeachment trial.

What is already known to prosecutors is likely also sufficient to indict Trump for his willful efforts to deny Americans’ civil rights by subverting our democracy.

But more is needed.

History — as well as competent prosecution — demands that we establish Trump’s knowledge and intent on Jan. 6 so that he is held accountable and we never forget the full extent of what happened. Did Trump, when he addressed his supporters, know what was planned? Did he know the intended risks to the lives of Capitol police, the vice president, the Speaker of the House and others? Did he have enough information before he spoke that he reasonably should have known the likely outcome?