It’s not.

> For my friends, anything. For my enemies, the law.

- Oscar Benavidez, Peruvian dictator

Doesn't matter if it is, he would just pardon himself.

Edit: On second thought, he wouldn't even have to, since he already has immunity anyways.

Using a personal account to post comments to social media is not an official act.

The entire concept of "official act" does not actually exist. It wasn't defined in the Constitution, and neither was it defined by the Supreme Court when they invented it from whole cloth.

Courts have already determined it's an official act by Congressman and Senators to shield them from defamation lawsuits.

How sure are you that the supreme court agrees with you?

Because US is not a democracy anymore. Checks and balances are gone.

Dumbasses spent 50 years voting for Republican politicians who refused to hold their own accountable for things like outright fraud and crime.

Who would stop them? Certainly not their voters.

Out of curiosity, on what basis would this be illegal? Given that it was posted publicly and all.