There is no exact definition of a constitutional crisis. Presumably it’s when the United States Constitution is in crisis. And it is in crisis now, today, because the president of the United States is abusing it to entrench his power.
Rosenstein and Mueller know that even if the Russians surrendered themselves to the U.S., the hacking case would never go to trial. The indictment is based on guesses and designed to manipulate public opinion against Trump.
The vice president had to dive into a packed agenda on short notice, attending the Summit of the Americas in Trump's place so the president could manage the U.S. response to Syria.
The president is getting ready to do whatever it takes to maintain his power, even if that requires fanatical policies.
Last June, Donald Trump reportedly ordered White House counsel Don McGahn to fire special counsel Robert Mueller. If true, the order was illegal.