
The definition of a political a coup d’état on Wikipedia is ‘stroke of state’, or simply a coup, is typically an illegal and overt attempt by a military organization or other government elites to unseat an incumbent leadership A self coup is said to take place when a leader, having come to power through legal means, tries to stay in power through illegal means.
I am not 100% sure of a definition of someone coming to power lawfully and then illegally enacting laws to suit their best interest while acting against the interest of the people that those laws then impact on.
I hope Trump is just a businessman or salesman just asset stripping the US and globe in order to make some money and save some dollars over the next four years but if it is an unlawful power grab and something deeper then that then it will not be good for anyone.

