Ignorant politicians are elected by ignorant people. US education, like the US health system, is notorious for its failures. In the most powerful nation on earth, one adult in five believes the sun revolves around the earth; only 26% accept that evolution takes place by means of natural selection; two-thirds of young adults are unable to find Iraq on a map; two-thirds of US voters cannot name the three branches of government; the maths skills of 15 year-olds in the US are ranked 24th out of the 29 countries of the OECD.
Full article here. A very good read.