Yes, there is a strong parallel between pre-Nazi Germany and current USA. Of course, Americans will not literally follow Nazi ideology.
What we see in America is an increasing merger between industry and government. Finance is the most regulated sector; hence "too big to fail" and all the exploits pulled by big banks. Telecom is almost completely government controlled (through the graning of regulatory monopolies). The government spies on everyone all the time now. This is the fulfillment of Progressivism: regular people are ignorant, but we can fix all social ills through government control. It is also, literally, the fascist model. I sound like an immature teenager for saying that, but I mean it in the full, intellectual sense.
tl;dr the American Progressive movement occurred in parallel, but to a must greater extent, in Weimar Germany. American Neo-conservativism is Progressivism in a right-wing flavor. The modern USA is Weimar Germany all over again.
As the USA's societal ills continue to accelerate (because we're taking anti-corrective action instead of corrective action at every step), the USA will increasingly resemble a command-and-control system like Nazi Germany.