While the news this election cycle has been focused on horse races and high-wattage personalities like Sharron Angle and Christine O’Donnell, one of the most important races in the country has slipped below the national radar—despite the fact that one of the key figures involved has a nasty habit of mingling with Islamic extremists. In the crucial bellwether state of Ohio, there are two up-and-coming candidates squaring off for state treasurer—and the stakes are very high. Democrats are desperate to defeat the Republican, state Rep. Josh Mandel, a Marine veteran whom many observers see as a major star-in-the-making after he...