The Political Clout of the Superrich. By Chrystia Freeland.

The political clout of the superrich. By Chrystia Freeland. Reuters, March 1, 2013.

Stacked Deck: How the Dominance of Politics by the Affluent and Business Undermines Economic Mobility in America. By David Callahan and J. Mijin Cha. Demos. PDF.