Moscow (CNN) -- In her previous life, Kseniya Sobchak bared her soul -- and a lot more -- as Russia's version of Paris Hilton, a socialite with her own reality show. One installment of her 2008 production "A Blonde in Chocolate" featured her sprawled on the floor sporting white, stiletto-heeled boots, a slip and a fur wrap, looking as if she'd had a tough night on the town. But even then, Sobchak tells CNN, she was a closet political junkie. "During my Paris Hilton years," she says with a smile, "I was always saying that I'm better off in show...