The general election unofficially began nearly a month ago, and so far President Obama is winning. This has nothing to do with poll numbers. Sure, Obama enjoys a statistically insignificant 3.7 percent edge over presumptive Republican nominee Mitt Romney in an average of polls compiled by RealClearPolitics, and several analyses give the president a bigger advantage when it comes to the Electoral College. But every honest observer knows that polling will only become meaningful in the fall. It's been widely agreed that given Obama's vulnerabilities, Romney's chances of winning hinge on his ability to make the election a referendum on...