This is the right answer. I don't know why everyone is overreacting saying how the US democracy is dead and he will be in office forever.

He's just a narcissistic guy who wants to achieve some goals thw US had previously to show he's the only one who could do it, and to show what this great power can do (Iran, Venezuela, etc...)

I also think he's probably aware of his age and cognitive decline, so that's why he's in such a hurry to do everything as fast as possible. He's not the same as in 2017