The right-wing party AfD was successful in being re-elected to the German Bundestag in the year 2021, even though – compared with the previous parliamentary elections (2017) – with a smaller vote share (10 .3 percent instead of 12 .6 percent) and a loss of seats (83 instead of 94) . The AfD parliamentary party in the 19th Bundestag (2017-2021) was sur- prisingly stable in spite of the fundamental changes of the political positions of the AfD . At the end of the election period, only 10 MPs had left the parliamentary party, were excluded or had died . And nearly most of the remaining representatives – more than the 58 re- elected MPs (nearly 70 percent of AfD-MPs in the 20th Bundestag) – were interested in renewing their mandates . That is remarkable, because nearly 85 percent of the 2017 elected MPs became a party member in the founding years (2013/2014) of the AfD . The – here analysed – (political) social profile of AfD-MPs changed from the 19th Bundestag to the 20th because of the 36 MPs leaving the parliament at the end of the election period and the 25 newly elected ones . In particular, the AfD parliamentary party lost some politically and parliamentary experienced MPs who previously had been members of democratic parties and were elected into councils of local self-government before joining the AfD . To compen- sate it, the 2021 newly elected representatives did not gain enough political experience before joining the AfD . Very few had been members of an established party and even fewer held a mandate in a municipal council . The AfD parliamentary party is characterised by the internal process of self-recruitment and political professionalization of the AfD . Nearly 50 percent of the newly elected parliamentarians had been AfD-MPs in state parliaments or had been in the staff of the party, the parliamentary party or a single MP . But nevertheless, the lack of political and parliamentary experience before becoming AfD member reduces and concentrates political experience and activities on the AfD (as arena of political experience) and encourages a “movement” orientation of parliamentary activities . Therefore, a constructive cooperation in the Bundestag by the parliamentary party and most MPs of the AfD could not be expected .