PCUSA

The Presbyterian Church (USA), abbreviated PCUSA, is a mainline Protestant denomination in the United States. It is the largest Presbyterian denomination in the United States. Its theological roots lie primarily in the Scottish Reformation, particularly going back to the reforms done by the Calvinist reformer and minister John Knox of Scotland. Now known for its generally liberal stance on doctrine, The Presbyterian Church (USA) was established with the 1983 merger of the Presbyterian Church in the United States, whose churches were located in the Southern and border states, with the United Presbyterian Church in the United States of America, whose congregations could be found in every state.