Thaddeus Stevens

Thaddeus Stevens (April 4, 1792 – August 11, 1868) was a member of the United States House of Representatives from Pennsylvania. He was one of the leaders of the Radical Republican faction of the Republican Party during the 1860s. A fierce opponent of slavery and discrimination against African Americans, Stevens sought to secure their rights during Reconstruction, leading the opposition to U.S. President Andrew Johnson. As chairman of the House Ways and Means Committee during the American Civil War, he played a leading role, focusing his attention on defeating the Confederacy, financing the war with new taxes and borrowing, crushing the power of slave owners, ending slavery, and securing equal rights for the Freedmen.
https://en.wikipedia.org/wiki/Thaddeus_Stevens