Linden Mayor Richard Gerbounka, an ex-Democrat who turned independent and won control of the city two years ago, called upon residents today to support GOP presidential nominee Sen. John McCain. Standing in front of City Hall, Gerbounka and four members of the City Council urged residents in this Democratic stronghold to cross party lines and support McCain, who will be visiting New Jersey tomorrow. Gerbounka's move marked the first time since former Elizabeth Mayor Tom Dunn went for Ronald Reagan that a mayor of a major Union County city turned on his party. "This election is not about Democrats or...