It is best to understand the definitions of words before using them in a post. The US has three branches of government: the Executive branch, the judicial branch, and the legislative branch. Trump cannot change this.
Autocratic government
A system of government where the ruler, or autocrat, has complete power. There is no system of checks and balances, and the ruler is not accountable to the people, press, or a cabinet of advisors. Autocratic governments include all forms of dictatorship and some forms of monarchy.