House Speaker John Boehner (R-Ohio) appeared on “Fox News Sunday” yesterday and argued that President Obama’s policies “have actually made our economy worse.” Then he said it again. And again. All told, the House Republican repeated the claim five times in one interview (and in each instance, host Chris Wallace offered no pushback whatsoever). For those who care about reality, Boehner’s claim isn’t true. Since the president took office, every aspect of the American economy — job creation, economic growth, manufacturing, the stock market, etc. — has improved considerably. Repeating a lie five times doesn’t make it true. But what...