Something revealing happened over the weekend on Fox News Sunday. Dick Cheney had stopped by to bash President Barack Obama’s nuclear deal and promote his new book (co-authored with his daughter Liz). But moderator Chris Wallace, to his credit, wanted to ask Cheney about his own failings on Iran. On the Bush administration’s watch, Wallace noted, Iran’s centrifuges for enriching uranium “went from zero to 5,000.” Cheney protested, declaring that, “That happened on Obama’s watch and not on our watch.” But Wallace held his ground. “No, no, no,” he insisted. “By 2009, they were at 5,000.” Cheney paused for an instant, muttered, “right,” and went back to his talking points.