Eventually the Congress and the public began to take notice and a number of additional legislative proposals were brought forward. Senator John Brooks Henderson of Missouri submitted a joint resolution for a constitutional amendment abolishing slavery, January 11, 1864. The abolition of slavery had, historically, been associated with Republicans, but Henderson was one of the War Democrats. The Senate Judiciary Committee, chaired by Lyman Trumbull (Republican, Illinois), became involved in merging different proposals for an amendment. Another Republican, Senator Charles Sumner (Radical Republican, Massachusetts), submitted a constitutional amendment to abolish slavery as well as guarantee equality on February 8 the same year. As the number of proposals and the extent of their scope began to grow, the Senate Judiciary Committee presented the Senate with an amendment proposal combining the drafts of Ashley, Wilson and Henderson.