The BfV's report found the AfD violated principles of human dignity and equality by promoting exclusion of non-ethnic Germans and advocating unconstitutional unequal treatment, particularly targeting those with migration backgrounds from Muslim-majority countries.

The designation permits enhanced monitoring tactics such as intercepting communications, infiltrating meetings with undercover agents, and accessing financial records, though specific operational details remain classified.

Rubio condemned the move as 'tyranny in disguise,' while Musk called a potential AfD ban an 'extreme attack on democracy,' reflecting alignment with the party's criticism of Germany's immigration policies.

In February's federal elections, the AfD secured 152 parliamentary seats with 20.8% of the vote, marking its strongest federal performance to date.

Co-chairs Alice Weidel and Tino Chrupalla denounced the classification as politically motivated and emphasized it has not been legally finalized, urging supporters to challenge it.