“Even if the order were carried out, a president can be impeached and removed, then tried in an Article 3 court.”
But if that were the only remedy, then a rogue president plus 34 partisan hacks in the Senate could do anything. The president could, literally, get away with murder.
There should certainly be immunity for official acts. For example, IIRC, some of Trump’s executive orders were overturned in court for having violated some statute. Even if the EO is held unlawful, Trump couldn’t be prosecuted for that.
The criminal case in New York doesn’t fall within official immunity. The alleged crime occurred partly before Trump was inaugurated. Even as to things he did as President, nothing related to Stormy Daniels was part of his official duties. His best argument is that adultery is not a crime, hush-money payments are not a crime, and the indictment concerns only a bookkeeping dispute about how the payments were treated.
Think of the mind boggling absurdity of imprisoning Trump for 750 years on bogus charges orchestrated by the Biden regime (to stay in power) while this same regime literally DESTROYS the country by actively logistically assisting and underwriting its invasion. What could be worse than treason? Biden is getting away it while we discuss how many angels can dance on the head of a pin.