Höcke was a short-time member of the Junge Union. As one of the founders of AfD Thuringia, he became Member of the Landtag of Thuringia, the state assembly of the federal state of Thuringia in Germany during the 2014 Thuringian State Elections. Höcke is the speaker of the parliamentary group of the AfD and he is the spokesman of the Thuringia Landesverband of his party. He is said to be part of the “national-conservative wing” of the AfD. His faction of the party is known as the Flügel and 40 percent of the AfD party members identify themselves with it. In September 2019, Höcke threatened "massive consequences" to a ZDF journalist who refused to restart an interview after a series of difficult questions and after asking fellow party members whether various quotes are from his book or from Hitler's Mein Kampf.
Höcke espouses far-right views. Political scientists such as Gero Neugebauer and Hajo Funke have commented that Höcke's opinions are close to the National Democratic Party of Germany and consider his statements völkisch, racist and fascist. In September 2019, a German court ruled that Höcke could legally be called a fascist as the description "rests on verifiable fact". He is reported to have declared that if Europe would keep on taking in immigrants, the African "reproductive behavior" will not change. Regarding the European migrant crisis, Höcke opposes Germany's asylum policy, leading regular demonstrations in Erfurt against the federal government's asylum policy, which regularly attracted several thousand sympathizers. He opposes the euro, favoring a return to national currencies. Höcke has called for more "Prussian virtues" and promotes natalist views, specifically the "three-child family as a political and social model." He opposes gender mainstreaming and demands an end of what he calls "social experiments" that undermine what he deems the "natural gender order." He opposes the mainstreaming of students with disabilities, calling for such students to go the separate schools, and opposes school sexual education, which he regards as "early sexualization of the students," and wants to "stop the dissolution of the natural polarity of the two sexes". In a 2014 email to party colleagues, Höcke advocated the abolition of section 86 of the German Criminal Code and section 130 of the German Criminal Code. This would also have legalized Holocaust denial, which is illegal in Germany. Höcke has links with neo-Nazi circles in Germany. Höcke has written with Thorsten Heise, a leader of NPD. In 2015 Höcke was accused of having contributed to Heise's journal People in Motion and The Reichsbote under a pseudonym. Höcke denied having ever written for NPD papers, but refused to give a statutory declaration as demanded by the AfD Federal Executive Board.
Allegations of antisemitism
Höcke gave a speech in Dresden in January 2017, in which, referring to the Holocaust memorial in Berlin, he stated that "we Germans are the only people in the world who have planted a memorial of shame in the heart of their capital" and suggested that Germans "need to make a 180 degree change in their commemoration policy". The speech was widely criticized as antisemitic, among others by Jewish leaders in Germany, and he was described by his party chairwoman, Frauke Petry, in response as a “burden to the party”. As a result of his speech, the majority of leaders of the AfD asked in February 2017 that Björn Höcke be expelled from the party. In May 2018 an AfD tribunal ruled that Höcke was allowed to stay in the party. After Höcke's "monument of shame" comment, the Center for Political Beauty, a Berlin-based art collective, erected a full-scale replica of one section of the Holocaust memorial in Berlin within viewing distance of Höcke's home in Bornhagen as a reminder of German history. A video of Höcke emerged in March 2020 in which he used an Auschwitz pun while attacking critics of his Flügel faction. The faction had been placed under surveillance by the Federal Office for the Protection of the Constitution shortly before the video surfaced.