The term Tory Rival can refer to two different political parties in the United Kingdom. The first is the Whig Party, which was a British political party that existed from 1678 to 1868 and was one of the two major parties during the late 18th and early 19th centuries. The second is the LABOUR Party, which is a centre-left political party that has been the main opposition to the Conservative Party since the 1920s.