All Republicans candidates, even those not named Trump, promise to make America great again. That implies, of course, that America is in decline now. That narrative of decline is an historical argument: We were great once, but we aren't any more.
While there is nothing wrong with the legal and transparent accumulation of wealth, it is not inconceivable to draw the rather dark conclusion that there are those willing to allow or facilitate death and destruction to amass and protect said wealth
We Americans harbor a quaint belief that a new president takes charge of a government that eagerly awaits his next command. But that's not how things work at the top, especially where "national security" is concerned.