Conversation so far:
When did Thomas A. Hendricks become Senator?
Hendricks represented Indiana in the U.S. Senate during the final years of the American Civil War and part of the Reconstruction Era.
What did Thomas A. Hendricks do as Senator?
Hendricks challenged what he thought was radical legislation, including the military draft and issuing greenbacks.
What did Thomas A. Hendricks stand for as Senator?
He supported the Union and prosecution of the war, consistently voting in favor of wartime appropriations.
What did Thomas A. Hendricks oppose as Senator?
Hendricks adamantly opposed Radical Reconstruction.
How did Thomas A. Hendricks vote on key issues as Senator?
Hendricks voted against the Thirteenth, Fourteenth, and Fifteenth Amendments to the U.S. Constitution that would, upon ratification, grant voting rights to males of all races and abolish slavery.

Question: what else?
Self-contained rewrite: What else did Thomas A. Hendricks vote on as Senator besides against the Thirteenth, fourteenth, and Fifteenth Amendments to the U.S. Constitution?