women's suffrage (his wife, Belle Case, influenced him greatly and was a fervent feminist herself)
antitrust/corporation regulation reforms
was called unpatriotic by critics when he opposed the idea of the U.S. going to war during World War I
ran for the Progressive party in the election of 1924 and lost
was seen as a traitor to his homestate of Wisconsin
many alliances he made were threatened when he announced his opposition to the war
the platform of his ideas threatened the order of the country because they involved a government takeover of the railroads, getting rid of private utilities, and outlawing child labor and more importantly, the end of imperialism in Latin America
this fear is seen as the reason he lost the election in 1924