Commissioner of Agriculture, State of Texas, 2015-present

Representative, Texas State House of Representatives, 2000-2014

Candidate, Texas House of Representatives, District 59, 2012

Board Member, Stephenville Independent School District, 1999-2000

Former Member, Agriculture Policy Board

Former Member, Conservative Coalition

Former Member, Education Task Force, American Legislative Exchange Council

Former Member, Legislative Caucus for Missing and Exploited Children

Former Founding Member, Legislative Tea Party Caucus

Former Member, Manufacturer's Caucus

Former Vice-Chair/Secretary, Republican Caucus

Former Member, Rural Caucus

Former Member, Sportsmen's Caucus

Former Member, Technology Caucus

Former Member, Veterans and Military Affairs Coalition

Former Director, Farm Bureau

Owner, Lone Oak Farms, 1983-2000

Owner, Miller Christmas Stores, 1988-2000

Owner, Miller Nursery and Tree Company, 1983-2000

Teacher, Vocational Agriculture, 1978-1983

Member, Alumni Association, Tarleton State University, 1998-present

Member, Texas Cattle Feeders Association, 1998-present

Member, Texas Nursery and Landscape Association, 1997-present

Member, Associated General Contractors of America, 1985-present

Member, American Nursery and Landscape Association, 1983-present

Lifetime Member, Houston Livestock Show and Rodeo, 1978-present

Member, Advisory Board, Future Farmers of America (FFA)

Member, Athletic Booster Club, Stephenville Independent School District

Elder/Member, Erath County Cowboy Church

Deacon/Sunday School Teacher, Green Creek Baptist Church

Member, Leadership Stephenville Alumni

Member, National Energy Council

Member, National Rifle Association (NRA)

Member, Texas Vocational Agriculture Teachers Association

Member, Texas and Southwestern Cattle Raisers Association

Former Board Member, Erath County Farm Bureau, 1999-2000

Former Board Member, Stephenville Chamber of Commerce, 1997-2000

Member, Stephenville Optimist Club, 1998-2000

Past Area Chairman, Ducks Unlimited, 1996-1998

Awards:

Fighter for Free Enterprise Award, Texas Association of Business

Outstanding Service, Texas Association of Community Health Centers

Texas At Promise, Coalition for Hope and Opportunity for Charter Education

Reader's Choice, Stephenville Empire Tribune

2nd Most Conservative Voter, Texas House, Texas Eagle Forum

Taxpayer Champion, Texans for Fiscal Responsibility

Freshman of the Year, 77th session, Texas House

Legislator Supporter Award, Texas Association of Community Health Centers

Best List, Texas Insider

Best of the Legislature, Capitol Inside, 2011