In the movie Lincoln, the audience gets to view a historically accurate drama depicting how President Lincoln and the Radical Republicans passed the 13th Amendment in the House of Representatives and on its way to its eventual ratification by all the states. Republicans controlled a super-majority in the Senate, so passing the Amendment was a piece of cake. But they did not own a super-majority in the House, so they had to use some less than legal methods to get Democratic votes. Though these tactics gained them votes, they needed to make sure not to scare the Democrats away by appearing too radical. Because of this, during the debates, Lincon himself encouraged radical Republican Thaddeus Stevens to appear more moderate in order to appeal to the Democrats.