A Republican, Hartsook represents Colorado House of Representatives District 44, which includes the Douglas County communities of Parker, Stonegate, Sierra Ridge, Meridian Village, and Stepping Stone.
[2] Hartsook served for 26 years in the United States Army, retiring as a lieutenant colonel.
[1][3] Together with his wife, he has owned and run a small business in Parker for ten years.
In the Republican primary election held June 25, 2024, he ran unopposed.
[5] In the general election held November 5, 2024, Hartsook defeated his Democratic Party opponent winning 58.64% of the vote.