According to research by the Correctiv research network, Hartwig attended a secret meeting on 25 November 2023 at the Landhaus Adlon in Potsdam with participants from the New Right, including Austrian IdentitarianMartin Sellner. At the meeting, a "master plan" for the practical implementation of the expulsion of millions of people from Germany, including those with German citizenship (so-called remigration), was reportedly discussed. In this context, Hartwig is said to have stated that he wanted to take the contents of the meeting to the AfD leadership.[4][5]