A drive by some American cities to cut costly police retirement benefits has led to an extraordinary face-off between local politicians and the law enforcement officers who work for them. In Costa Mesa, California, lawmaker Jim Righeimer says he was a target of intimidation because he sought to curb police pensions. In a lawsuit in November, Righeimer accused the Costa Mesa police union and a law firm that once represented them, of forcing him to undergo a sobriety test (he passed) after driving home from a bar in August 2012. That followed a call to 911 by private detective Chris...