Following three terms as a stand-pat Republican congressman from Madison, Robert M. La Follette emerged as the leader of an insurgent movement to wrest control of the party from the stalwart machine. La Follette had backed other anti-machine Republicans for governor before first running for the office in 1896. He campaigned on a platform of election reform and corporate accountability while accusing the stalwarts of bribery. After being elected governor on his third attempt in 1900, he spent his three terms fighting for primary elections and taxation of corporations based on the value of property. In 1904 the stalwarts fought bitterly against his second re-election with the use of bribed editors and a rump convention, but La Follette prevailed and saw his reforms passed. The state legislature elected him U.S. senator in 1905.