Is this the smoking gun?

Trump is in trouble again this time over the issue of - whether he asked the then head of the FBI James Comey to drop the investigation into the head of National Security Michael Flynn? This could come under the rubric of - frustrating the course of justice. This maelstrom engulfing the White House is causing it to be dysfunctional. How long can it continue like this, without it imploding? In my opinion he will eventually do something so outrageous and beyond the pale that he will be impeached. This could be the start of that process.