Origins of the American Civil War
In almost every northern state, organizers attempted to have a Republican Party or an anti-Nebraska fusion movement on ballots in 1854. In areas where the radical Republicans controlled the new organization, the comprehensive radical program became the party policy. Just as they helped organize the Republican Party in the summer of 1854, the radicals played an important role in the national organization of the party in 1856. Republican conventions in New York, Massachusetts, and Illinois adopted radical platforms. These radical platforms in such states as Wisconsin, Michigan, Maine, and Vermont usually called for the divorce of the government from slavery, the repeal of the Fugitive Slave Laws, and no more slave states, as did platforms in Pennsylvania, Minnesota, and Massachusetts when radical influence was high.
American Republican Party (1843)
The American Republican Party was a minor nativist political organization that was launched in New York in June 1843, largely as a protest against immigrant voters and officeholders. In 1844, it carried municipal elections in New York City and Philadelphia and expanded so rapidly that by July 1845 a national convention was called. This convention changed the name to the Native American Party and drafted a legislative program calling for a twenty-one-year period preceding naturalization and other sweeping reforms in the immigration policy. Failure to force congressional action on these proposals, combined with the growing national interest in the Mexican problem before the Mexican–American War, led to the party's rapid decline.