Here is a fairly short, 25 minute overview of the American political landscape that Thomas Frank delivers in The Shaw Address in Australia.
He urges them not to go down a similar path in 'this low, dishonest age.'
"The more power a government has the more it can act arbitrarily according to the whims and desires of the elite, and the more it will make war on others and murder its foreign and domestic subjects. Power will achieve its murderous potential. It simply waits for an excuse, an event of some sort, an assassination, a massacre in a neighboring country, an attempted coup, a famine, or a natural disaster, to justify the beginning of murder en masse."
R. J. Rummel, Mass Murder and Genocide, 1994