Senate Committees:

79th General Assembly – Agriculture, Conservation, Parks, Tourism and Industrial Developments (vice chairman); Insurance; Local Government, Fees and Salaries; State Departments; Ways and Means; and Joint Committee on Correctional Institutions and Problems (chairman).

80th General Assembly – Agriculture, Conservation, Parks and Tourism (vice chairman); Industrial Development (chairman); Insurance, Local Government, Fees and Salaries; State Departments; Ways and Means; Criminal Jurisprudence and Corrections; Energy and Environment; Correctional Institutions and Problems (vice chairman); State Employees Deferred Compensation Commission; and State Retirement System Board of Trustees.

81st General Assembly – Corrections (chairman); Roads, Highways, Industrial Development, Energy and Environment (chairman); Agriculture, Conservation, Parks and Tourism (vice chairman); Fees and Salaries (vice chairman); Accounts, Assignments and Clerical Force; State Departments and Governmental Affairs; Ways and Means; Joint Committee on Correctional Institutions and Problems (chairman); State Employees Deferred Compensation Commission; and Missouri Commission on Local Government. 

82nd General Assembly – Miscellaneous Bills (chairman); Roads, Highways, Industrial Development, Energy and Environment (chairman); Agriculture (vice chairman); Corrections (vice chairman); Gubernatorial Appointments (vice chairman); Local Government and Small Business (vice chairman); Correctional Institutions and Problems (vice chairman, statutory); Accounts, Assignments and Clerical Force; Insurance; Missouri Health Facilities Review (statutory); Missouri State Public Employees Deferred Compensation Commission (statutory). 

83rd General Assembly – Miscellaneous Bills (chairman); Administration (vice chairman); Gubernatorial Appointments (vice chairman); Local Government and Economic Development (vice chairman); Transportation (vice chairman); Agriculture, Conservation and Parks; Correctional Institutions and Problems; Health Facilities Review Committee; and Local Government (statutory).

84th General Assembly – Miscellaneous Bills (chairman); Administration (vice chairman); Gubernatorial Appointments (vice chairman); Local Government and Economic Development (vice chairman); Transportation (vice chairman); and Agriculture, Conservation and Parks.

85th General Assembly – Elections and General Laws (chairman); Administration (vice chairman); Local Government and Economic Development (vice chairman); Transportation (vice chairman); Gubernatorial Appointments; and Local Government (statutory).