Here's a depressing read.
The authors argues that the increased amount of money on politics has made both political parties responsive to the same political forces:
Money has flowed in such a flood into both parties that the Democratic Party gets a lot of its support from the very interests that -- when the Republicans are in power -- financially support the Republicans. You really have essentially -- except for the progressives on the left of the Democratic Party – you really have two corporate parties who in their own way and their own time are serving the interests of basically a narrow set of economic interests in the country.
