It’s easy to collect Mitt Romney's "rich" remarks into a highlight reel. Have a few laughs. Sure, we ask, what's the guy thinking? We note that presidential races require your A-game. But then it's tempting to shrug. And say he's still on track to win the GOP nomination. That the general election will turn on the economy. Oh, those silly pundits. How they do obsess over every sound bite. But listen to Rush Limbaugh on Romney: “He comes across as the prototypical rich Republican.” And one begins to hear why Romney’s gaffes are no joke. It’s commonly said that this...