1911Ballinger-Pinchot Controversy. The aftermath of the Ballinger-PinchotControversy led to the eventual split in the GOP and the formation of theProgressive Party in 1912.http://ehistory.osu.edu/osu/mmh/1912/conservation/aftermath_of_the_controversy.cfmehistory.osu.edu/.../images/SmallVallentine.jpg |