Mainline Protestant – Wikipedia

Members of mainline denominations have played leadership roles in all aspects of American life, including politics, business, education, science and the arts. In recent years, however, the mainline groups have shrunk as a percentage of the American population, as increasing numbers of American Protestants have come to affiliate instead with fundamentalist or evangelical churches. Politically and theologically, contemporary mainline Protestants tend to be more liberal than non-mainline believers.

via Mainline Protestant – Wikipedia, the free encyclopedia.