Kaufmann was elected to the
Landtag of Thuringia in
2019. On 5 March 2020 he was elected vice president of the Landtag with the narrowest possible majority, marking the first time the Thuringian AfD faction held this office. In the
2021 German federal election he defeated
CDU incumbent
Albert Weiler. Consequently, on 5 November 2021 Kaufmann resigned as member of the Landtag of Thuringia. Kaufmann was re-elected in the
2025 German federal election by keeping his
direct mandate. == References ==