In short, what Mueller said might have been effective enough if it happened when his report was released, but now, especially after the damage done by Barr, it is simply too little, too late. His current unwillingness to testify publicly strips the impeachment movement of its most powerful weapon.

Similarly, Don McGahn is unwilling to make a sacrifice for the country and testify, even under subpoena, against Trump. Currently in prison, Michael Cohen’s credibility has been, fairly or not, mostly shot.

Mitt Romney has made it obvious that he is coward. John McCain is dead. His alleged best friend Lindsey Graham has seemingly been compromised. Jeff Flake and Bob Corker are no longer in the Senate. George W. Bush has muted himself, and his parents are no longer with us.

Meanwhile, on the Democratic side, Nancy Pelosi is afraid of her own shadow, and this has rendered key Democrats like Jerry Nadler and Adam Schiff largely impotent. Not even Bill Clinton, who has obvious credibility on the topic, has come out in favor of Trump’s impeachment.