Answer:
Radicalism can be defined as the actions and beliefs of people who advocate complete political reform. During 1890s to 1945, some radical groups had ties with two great political parties in America. The populist party and the Democratic party.
Explanation:
The populist party called for the abolition of national banks, civil service reform, and government control of railways this was supported by William Jennings Bryan and some other leaders in the Democratic party.
Futhermore, some major trade unions were linked to the Democratic party like the American Federation of Labor.
The American Civil Liberties Union was formed in 1921 when more radical organisations were subject to violent attacks especially during world war 1, to protect immigrants that were threatened with deportation and American nationals that were threatened with criminal charges.
