I know that you can parse Trump’s request that the Flynn investigation be dropped and try to emphasize that adding “hope” somehow means that Trump really isn’t telling Comey to drop the investigation. That’s partisan nonsense. When your boss comes in and says, “I hope you can get this done before you go home,” normal people would take this to mean that you better not go home before “this” gets done or you could get fired. Comey didn’t do what Trump “hoped,” so he was fired. IMHO, that’s about as clear a case of obstruction as I have seen out of a President.