Irina Khakamada is running for president but her campaign headquarters are not bustling. Phones aren't ringing off the hook and no one is barking instructions. This is no Clinton-style war room, yet this lone warrior still looks battle-weary. She says she harbors no illusions of unseating President Vladimir Putin, but that's not the point. "We're fighting so that people raise their voices," she says, not fighting to win. "That costs less." But it's not clear just who is raising their voices in support. Speculation that she is a mercenary front for the Kremlin or oligarch interests has made it difficult...