Interesting post. It does raise the question "What drives the economy? Is it government policy and decisions or is it market forces, ie bankers' decisions and opinions?". Clearly government decisions can influence the direction the economy is going, or if you like give it a steer, but do they actually control it? I think not.
I'm not sure quite where the division of powers lies in the USA. To what extent can the President take action without the sanction of Congress (both houses) and by corollary without the consent of his party? In the context of this thread, are you really voting for the man or are you voting for his party's policies?
I appreciate that these are not easy questions to answer in the USA with its federalised structure.