Senator Robert La Follette was an influential American politician and a key figure in the Progressive Movement during the early 20th century. Born in 1855 in Wisconsin, he served as the Governor of Wisconsin before being elected to the U.S. Senate in 1906. La Follette was known for his strong advocacy for reforms such as labor rights, women's suffrage, and the regulation of corporations. La Follette founded the Wisconsin Idea, a philosophy promoting public policy based on scientific research and expert knowledge. He also ran for President in 1924 as a candidate for the Progressive Party, emphasizing social justice and government accountability. His legacy continues to influence American politics today.