What does GOP stand for?

Historians have explored the ethnocultural foundations of the party, along the line that ethnic and religious groups set the moral standards for their members, who then carried those standards into politics. The churches also provided social networks that politicians used to sign up voters. The pietistic churches, heavily influenced by the revivals of the Second Great Awakening, emphasized the duty of the Christian to purge sin from society. Sin took many forms--alcoholism, polygamy and slavery became special targets for the Republicans. The Yankees, who dominated New England, much of upstate New York, and much of the upper Midwest were the strongest supporters of the new party. This was especially true for the pietistic Congregationalists and Presbyterians among them and (during the war), the Methodists, along with Scandinavian Lutherans. The Quakers were a small tight-knit group that was heavily Republican. The liturgical churches (Roman Catholic, Episcopal, German Lutheran), by contrast, largely rejected the moralism of the GOP; most of their adherents voted Democratic.