Detroit is the most liberal U.S. city while Provo, Utah, is the most conservative, a study of voting patterns indicates.The list was compiled by the Bay Area Center for Voting Research in California through an examination of voting in 237 U.S. cities with populations of more than 100,000."Detroit and Provo epitomize America's political, economic and racial polarization," BACVR Director Jason Alderman said in a release Thursday. "As the most conservative city in America, Provo is overwhelmingly white and solidly middle class. This is in stark contrast to Detroit, which is impoverished, black and the most liberal." Gary, Ind., was found...