For an idea of where the US is headed, I suggest reading brief Immanuel Wallerstein’s brief explanation in The United States Heading for a Crash which begins:
President Barack Obama has told the United States, and in particular its Congress, that it must do something very major in the Middle East to stop disaster. The analysis of the presumed problem is extremely murky, but the patriotic drums are being turned to high pitch and almost everyone is for the moment going along. A cooler head might say that they are all flailing around in desperation about a situation that the United States has the major responsibility for creating. They don’t know what to do, so they act in panic.
The explanation is simple. The United States is in serious decline. Everything is going wrong. And in the panic, they are like a driver of a powerful automobile who has lost control of it, and doesn’t know how to slow it down. So instead it is speeding it up and heading towards a major crash. The car is turning in all directions and skidding. It is self-destructive for the driver but the crash can bring disaster to the rest of the world as well.