In January 2016, Horton succeeded Henry Burns of Bossier City, who left the House seat to seek the District 36 position in the Louisiana State Senate.
[6] In March 2022, Horton authored House Bill 837 that would punish schools, teachers and administrators for discussing any topics in classrooms that related to LGBTQ American individuals, their lives and their families.
[7] In 2023, Horton authored HB8 which requires public schools to display the national motto of "In God We Trust" inside of all classrooms.
[9] The bill, filed by Republican Beryl Amedee, would remove legal protections for obscenity from teachers and librarians in all Louisiana public schools.
[10] In 2024, Horton pushed for House Bill 71, requiring the Ten Commandments to be displayed in all Louisiana public schools.