What he certainly is doing (continuing a theme) is rubbishing the US' democratic process on the world stage. Pointing fingers and blaming others without evidence for the position they find themselves in is exactly what children do, and he continues to act like a petulant child.
How he can, in the same breath claim to have won an election, and claim the election is undemocratic and fraudulent is beyond me. But then again, it's the same accusations without evidence that have marked his entire presidency, or "speaking his mind" as his fans call it.
C-19 was the first thing he's encountered that couldn't be bullied, bought or sued and he made a total shambles of dealing with it, as most people knew he would.
As for the whole freedom of speech/first ammendment argument, he has the right to say what he wants, he doesn't have an unfettered right to a national broadcasting platform on which to do it. Unless the first ammendment has changed since I last looked at Wikipedia
Also, this made me chuckle....
https://www.buzzfeed.com/natashajokic1/four-seasons-landscaping-tweets