I think another Nazi already beat him to the economy. There is zero indication that he will destroy the military. And no one, save Dubya, can be quite that much of an unmitigated disaster in only one or two terms in office.
The question is what kind of programs will an unknown new savior of hope put in place that may lead to abuse and perhaps disaster down the road. We will probably get a chance to find out. The Republican ticket is a disaster - and they too serve the same puppet masters.