Gant was first elected to the Tennessee House of Representatives in 2016, after 94th district incumbent Leigh Wilburn resigned and interim appointee Jamie Jenkins declined to seek re-election. Gant easily won a three-way primary to fill the seat, and faced no significant general election opposition in the heavily Republican district.[3] He has since been elected as Assistant Majority Leader in the chamber.
In 2023, Grant supported a resolution to expel three Democratic lawmakers from the legislature for violating decorum rules. The expulsion was widely characterized as unprecedented.[6]