Try this thought experiment: You decide to donate money to Mitt Romney. You want change in the Oval Office, so you engage in your democratic right to send a check.

Several days later, President Barack Obama, the most powerful man on the planet, singles you out by name. His campaign brands you a Romney donor, shames you for "betting against America," and accuses you of having a "less-than-reputable" record. The message from the man who controls the Justice Department (which can indict you), the SEC (which can fine you), and...