Here is what Mitt Romney should say at his official announcement in New Hampshire on Thursday: I’ve been running for president for almost 20 years now, but this time I’ve got a real shot, and I can sum up my edge in one word. Boring. That’s what I am, boring. I’m Dudley Do-Right, a straight arrow. I’m not Arnold Schwarzenegger or John Edwards, if you follow me. This year, boring is good. The White House desperately wants a nutty Republican. I’m as bland as my wife’s chili that you’ve been chowing down on.” Forget Osama, Obama can’t be re-elected on...