What metaphors are used in Parliament of Whores: A Lone Humorist Attempts to Explain the Entire U.S. Government by P. J. O'Rourke?

O'Rourke suggests that the media's identity as the unofficial fourth branch of government is largely illusory, an intoxication caused by the mere proximity to power. He depicts Washington journalists as tightly-knit, inbred and awash in the trappings of political power. The journalists, like the politicians themselves, live in a metaphorical ivory tower of government, apart from the neighboring crime-ridden communities of Washington.