Rick Santorum is not going to be the President of the US. But has there ever been a presidential candidate so totally disconnected from the real world?

In this clip Rachel Maddow takes apart Santorum’s absurd counter-factual claim that California universities do not teach American history. Why does Santorum tell such obvious lies? Because the people to whom he’s marketing himself live in a strange echo chamber, conditioned by years of Fox News and wingnut bloggers to simply accept this kind of ridiculous nonsense without even blinking.