I guess we are going to disagree with this one.
I understand. I see where you are coming from on this. I won't try and convince you otherwise. But I will comment some.
I think Trump's tweet is moronic. He praises this guy then attacks him.
If I remember correctly (and I could be wrong) there was a fair amount of time between the "praise" and the "attack". Isn't someone allowed to change their opinion of someone? Especially considering what transpired between the "praise" and the "attack"? If you refuse to allow someone the opportunity to change their opinion of someone then I think you are guilty of not alloying Trump to be human and allowing him to change his opinion. I dare you to tell you wife she is not allowed to change her mind.

But seriously, I questioned his praise of Comey and his decision to leave him in his position immediately after taking office. I thought he should have canned Comey from the beginning. If it were me I would have never trusted Comey in the first place.
If this guy is doing his job correctly then it may include an investigation involving Trump because a Comey firing can be a separate issue to whether Trump or his team had any improper actions with Russia. His recommendation to fire Comey can exist independently of a Trump investigation.
I agree with your statement but I think this is a moot point as all players involved denied Trump was under investigation at that time. Unless you feel some or are all lying about Trump not being investigated at that time?
Plus, why is Trump saying he is under investigation when it wasn't announced? Is he admitting that he is under investigation or is he responding to suggestions he sees in the media?
Now we are getting to the point where I don't know if he is now under investigation or not. Because the fake news agencies are all saying he is but from what I can tell, none of the official government agencies that matter have actually said so. And Trump's own lawyers are saying he is not.
Either way this is another dumb statement by Trump. I think his staff should try to hide his phone from him cause he is just going to keep saying these dumb things.
This is where I see you point. Instead of agreeing/disagreeing I will just say that I don't think that there is enough evidence yet to determine whether Trump's statement is dumb because is what he is saying correct and coming before an official announcement? To me that is not necessarily dumb. Are his lawyers trying to cover up the fact he knew some inside information that he let loose that he shouldn't have? If so I agree it was dumb. Or was his tweet just hearsay? If so I agree, dumb. So I can see some different sides that you don't?