Earlier quoted context omitted.
Trump is an asshole however he is our legitimate president no mater how much some of us do not like it. He won the election as the rules require. Period. Let's not forget that. The office should be respected no matter what asswipe he is in it. If you disagree with his policies then call your congressman, et. al. Protest by all means. That is your right as an American. He was elected because a large majority of people…
The parent is not saying Trump is not the legitimate president. He's saying that the US government has three branches (congress, executive, judiciary) which provide checks and balances and Trump is ordering an executive agency to ignore that, and the agency is following this order. Characterizing this as a coup is not totally inaccurate.
Actually, the parent does explicitly say this:
our illegitimate "President"