Joseph E. Tinney is a part of what party that is commonly called the GOP?
History of the United States Republican Party The Republican Party, also commonly called the GOP (for "Grand Old Party"), is one of the world's oldest extant political parties. It is the second oldest existing political party in the United States after its primary rival, the Democratic Party. It emerged in 1854 to combat the Kansas–Nebraska Act, an act that dissolved the terms of the Missouri Compromise and allowed slave or free status to be decided in the territories by popular sovereignty. The Party had almost no presence in the Southern United States, but by 1858 in the North it had enlisted former Whigs and former Free Soil Democrats to form majorities in nearly every Northern state.
Opposition Party (Northern U.S.) The Opposition Party was a party identification under which Northern, anti-slavery politicians, formerly members of the Democratic and Whig parties, briefly ran in the 1850s. This was in response to the expansion of slavery into the new territories. It was one of the movements which arose from the political chaos in the decade before the Civil War in the wake of the Compromise of 1850. The movement arose before and was quickly subsumed by the coalescence of the Republican Party in 1856.