Obviously what he is doing is public, and intentionally so. And I understand the hind-wringers, regardless of whether the public remark is "official record" or not.
You remind me of Chris Cuomo, and others on CNN, who can;t get their head around the difference between a tweet and somehting that really is "official." Sometimes the offhand remark alingns perfectly with the details, more often it is hyperbolic, technically incorrect, and sometimes technically even a lie. Sarcasm can have that quality.
The boys on Morning Joe have been petty and mean to President Trump. He's being petty and mean back. They deserve it.
It will play in public just like it does here. Some people will disparage the move, others will applaud it.
I agree with the National Archive. These tweets fit the law.
You don’t have to agree.
You might change your mind when you see a Dem President use twitter.