Commissioner Miller is an eighth-generation farmer and rancher. He is the 12th Commissioner of the Texas Department of Agriculture (TDA). He has devoted his life to promoting Texas agriculture, rural communities, and the great state of Texas. A recognized community leader, Miller was first elected to the House of Representatives in 2000. He quickly earned a reputation as a staunch defender of Texas agriculture, constitutional freedoms, and individual liberties for all Texans.

A former ag teacher and school board member, Commissioner Miller is committed to fighting childhood obesity and promoting healthy lifestyles for Texas schoolchildren. Commissioner Miller is also passionate about ensuring rural communities have the water and infrastructure they need to thrive. To that end, he created TDA’s Office of Water to secure access to clean water for Texans today and their future generations.

Commissioner Miller is a businessman who breeds and trains American Quarter Horses. In his spare time, he is a recognized rodeo cowboy who holds 12 world championship titles. 

He and his wife, Debra, have been married for over 45 years. They have two sons, two daughters-in-law and five grandchildren. They are active members of the Cowboy Church of Erath County, where Commissioner Miller also serves as an elder.