He was elected to represent the 87th district of the Missouri House of Representatives on November 6, 2018, beating Republican Steven Bailey with 67% of the vote.[4] He ran unopposed for the seat again in the general election on November 3, 2020, winning 100% of the votes cast.[5]
After statewide redistricting in 2022, Mackey ran to represent the newly-formed 99th House district, beating Republican LaVanna Wrobley with 65.4% of the vote.[6]
Mackey is openly gay.[7] In an April 2022 floor speech, Mackey passionately spoke out against a bill that would ban transgender students from participating in youth sports; in the speech, he also confronted and criticized Missouri state representative Chuck Basye for supporting the bill. A video of the speech went viral on TikTok.[8]
Electoral history
Missouri House of Representatives Primary Election, August 7, 2018, District 87[9]