In 1974, the Supreme Court accepted, heard and decided a case within two months because the justices understood its importance to the public.
The parallels between Trump and Nixon are abundantly clear. Yet even Nixon acknowledged the fundamental importance of accountability in a democracy.
Trump will survive the impeachment process in 2020, no matter what malfeasance comes to light. The Republicans will protect their man at all costs.
No written law or rule requires the senators to remain silent on the issues. But it’s probably a good idea, and a promising sign of fairness.