This piece in the New York Times from last week nicely summarizes the interconnected relationship between Washington and Wall Street, reviewing how high-ranking politicians frequently make their way into high-paying positions in the finance industry when they retire from office.
This isn't breaking news by any means, but a good reminder - especially in the wake of the recent contest for the White House - that the two parties begin to look quite similar when examined from a distance.
http://dealbook.nytimes.com/2012/11/06/wall-street-offers-a-second-career-for-former-politicians