Perry’s monstrous lies about Social Security: "Not only is Perry shooting wildly from the hip on these statements — a strategy cynically designed to attract angry, younger independent voters — he’s spewing some layered falsehoods that need to be addressed."

The takeaway: "Behind Social Security is an appallingly simple truth: We can put more money into it by asking higher-salaried employees to pay more, and by including immigrants and public-sector employees. I know that doesn’t have much political sizzle to it, but this kind of math doesn’t lie."