Definition of: Progressive party

1. A political party formed under the leadership of Theodore Roosevelt in 1912, which sought political and labor reforms and social security legislation.
2. A political party seeking labor and agricultural reforms, formed in 1924 under the leadership of Robert M. LaFollette.
3. A political party formed in 1948, which nominated Henry A. Wallace for president on a platform advocating full employment and a modification of the then current U.S. foreign policy, particularly in respect to the U.S.S.R.