From economist Paul Krugman.
Clearly the most important thing happening in and to America right now is the constitutional crisis. Not potential crisis: it’s already here. The president’s inner circle is under investigation for possible collusion with a hostile foreign power, collusion that may have put him in office; he himself, whether or not he’s currently a direct target of that investigation, is clearly suspect. Yet he has already made clear his determination to block any investigation that gets too close.
This is way worse than Nixon – yet all indications are that the moral rot of the Republican Party now runs so deep that the constitutional answer to a rogue president is null and void. This is an existential threat to the republic, and it can be hard to focus on anything else.