Senator Caldwell is chair of the Senate Committee on Agriculture, Forestry and Economic Development. He is a member of the Senate Revenue and Taxation Committee, Senate Rules, Resolutions and Memorials Committee, Joint Budget Committee, Arkansas Legislative Council, Legislative Joint Auditing Committee and Joint Energy.

In the 94th General Assembly, Senator Caldwell sponsored a wide range of legislation, from amending the Arkansas Egg Marketing Act of 1969 to providing storm shelters for education facilities.

In past sessions, Senator Caldwell has sponsored legislation that affected the Arkansas Medicaid Program, the Teachers Retirement System and the mergers of Technical Institutes and Community Colleges. He has voted to ban abortions after twenty weeks or whenever the heartbeat is determined.

In the 92nd General Assembly, Senator Caldwell was chair of State Agencies and Governmental Affairs Committee which reviewed the Arkansas Government Transformation Bill that became ACT 910 of 2019. The committee spent almost four weeks on the bill while still considering other legislation assigned to the committee.

Act 910 was over 2,000 pages long and affected every department and agency in the executive branch.

Senator Caldwell is active with the Cross County Economic Development Commission, the National Rifle Association, the Dallas Safari Club, Delta Waterfowl and Honduras Medical-Dental. He is a real estate investor and the owner of Caldwell Development, LLC and Caldwell Family Enterprises, LLC. He is the past owner of Caldwell Lumber Co., Inc.

A native of Wynne, Arkansas, Senator Caldwell graduated from Arkansas State University in Jonesboro with a bachelor's degree in marketing. He and his wife Brenda Ann have one son, one daughter and three grandchildren. Senator Caldwell and his wife are members of the Wynne Baptist Church.