Biden became ranking minority member of the Senate Judiciary Committee in 1981. In 1984, he was a Democratic floor manager for the successful passage of the Comprehensive Crime Control Act; over time, the law's tough-on-crime provisions became controversial and in 2019, Biden called his role in passing the bill a "big mistake". His supporters praised him for modifying some of the law's worst provisions, and it was his most important legislative accomplishment to that time. This bill included the Federal Assault Weapons Ban and the Violence Against Women Act, which he has called his most significant legislation.