Not illegal now that Trump and his fellow Republican Fascists are making the rules. Welcome to the Fourth Reich.
Trump does not accept law and order, neither domestic or international as a constraint on his actions. From Trump’s perspective, no one else counts! NO LAW, NO CONSTITUTION. No humane consideration has authority to constrain Trump and his fellow Amerikan, Fascists will. In his claims Trump surpasses that of… THE THIRD REICH!
To paraphrase Paul Craig Roberts.