Senator Hill began his political career in 1989, running for the state seat of District 4, held previously by Joe Kennedy for 24 years. Three Democrats ran for the seat: Lamar Deloach, Jack Hill, and Jim Martin. The primary election was on July 17th, 1990. Hill won 50% of the vote but failed to win the majority vote, and Martin received 31%. The morning after the election, one hundred and thirty votes were found in two separate voting locations that would have given Hill enough votes to win. However, a runoff election took place on August 7th between Hill and Martin. Hill won handily, with 61% of the vote and a 5,093 vote lead in the district.
The issues Senator Hill stood for during the election campaign were:
"Thank You for Your Confidence in Re-electing Me to the Senate for Two More Years!" Senator Hill newspaper survey
Senator-elect Hill served on four key Senate standing committees for the 1991- 1992 session of the Georgia General Assembly. Lieutenant Governor-elect Pierre Howard appointed Hill membership of the Appropriations Committee, which was odd for a first-term senator, assigned to the Transportation Committee as Secretary, Member of the Senate Corrections Committee, and Member of the Natural Resources Committee.
Early in his career, Senator Hill proved to be a hard worker. In 1991, Lt. Gov. Pierre Howard described Senator Hill as
Senator Hill, to ensure the policies he campaigned for were fulfilled, served on numerous committees and dedicated his time in office to passing innovative legislation from 1990 to 2002 such as: