...Mr. Gingrich represents a new kind of Catholic, one very different from the Kennedys, who were Democrats, political liberals and cradle Catholics shaped by the Irish immigrant church...Mr. Gingrich is a culture wars Catholic for whom the church seems a logical home for conservative Republicans Generations removed from the Kennedy years when Catholics predictably voted Democratic, this is a new era in which conservative Catholics and evangelical Protestants have joined forces in what they see as a defining struggle against abortion, same-sex marriage and secularism. Like many recent converts to the church, Mr. Gingrich is what Catholics call a “John...