In his time in the Missouri Senate, Sen. Williams has been instrumental in passing legislation to freeze property tax values on the primary residence of those over 62 and to help sickle cell anemia patients, MO ABLE account holders and families entangled in the criminal justice system. Senator Williams also facilitates the Capitol's annual human trafficking awareness day.

His sweeping criminal justice reforms established the strongest use of force database in the country and a statewide conviction review unit; prohibit law enforcement from using a respiratory chokehold; ensure women offenders have access to free, adequate feminine hygiene products; and decreased the time to request an expungement for those who have paid their debt to society. Senator Williams also added a provision that helps set innocent people free from wrongful imprisonment.

Senator Williams serves on the Senate Appropriations Committee and has helped secure millions of dollars in funding for North St. Louis County, including the University of Missouri-St. Louis engineering program, South Camp project and the construction of the Campus of the Future, among others.

In addition to legislative duties, Sen. Williams works for Construction Career Development Initiative, providing training and job opportunities for underserved youth. He also serves as a board director for People's Health Center, where he helped develop a behavioral health care center for children. Senator Williams serves on the advisory boards for St. Louis Crisis Nursery, Simmons Bank, iHeart Media, Nurses for Newborns and the University City Children's Center. Senator Williams' family resides in University City, and he is a proud member of Kappa Alpha Psi Fraternity.