NPR: “A tiny percentage of very wealthy Americans funded a relatively large chunk of the 2010 congressional midterm races, continuing a trend that has been growing for two decades, according to a new analysis of political contributions. The Sunlight Foundation, which advocates for transparency in politics and government, found that fewer than 27,000 individuals (out of a population of 307 million Americans) each gave at least $10,000 to federal political campaigns in 2010.”