Howard Rich may live in New York, but he has waded deep into California politics. The multimillionaire developer, and president of U.S. Term Limits, has bankrolled California's eminent-domain measure to the tune of $1.5 million. But the money is only one front in Rich's national crusade against eminent domain, an effort that spans more than a half-dozen states and millions of dollars. "We have the ability to, in effect, bypass legislatures by going directly to the people through the initiative process," says Rich from his New York office. Through a web of organizations, Rich is backing eminent-domain initiatives in Arizona,...