SPENGLER: Ted Cruz, the only Republican arrogant enough to be president. “Sen. Cruz is authentically bright, sufficiently so for the liberal Alan Dershowitz to declare that he was the best student he had ever had at Harvard’s Law School. The conservative legal theorist Robert P. George, who taught Cruz at Princeton, says the same thing. He’s so smart that he is not the least impressed by the conservative foreign policy establishment. That’s what qualifies Ted Cruz for the presidency.”