Opinion: This impeachment trial could surprise us

Now that Donald Trump and his defenders have failed (again) to persuade the Senate that an ex-president cannot be impeached, the trial of the former president will begin in earnest. The House managers who foreshadowed their opening argument on Tuesday and will present it in full on Wednesday and Thursday have the best of the facts and the law. But can they solve the political problem of wooing 17 GOP senators to get to the two-thirds majority of the Senate necessary for conviction?