It would also require a group of Republicans with the power to gag him every time he tries to do something.
Years ago, I saw a list that someone compiled of all of Obama's campaign promises and the results of them, and basically all but one he tried to do and was voted down by Republicans who threatened to shut down the government if Democrats tried to push it through. The one thing he promised and didn't even attempt to do was shutting down Guantanamo Bay. For everything else, the Republicans who controlled both the house and the Senate for 7 and a half years of his presidency shut him out. There's a reason that Trump spent the first two years of his presidency repealing every executive order that Obama made. Besides being racist and upset that a black man held any power in this country, of course.