Measures Against Marxism’s Dangerous Adherents and Noxious Islamists Act of 2026

This bill restricts immigration and naturalization by adding new grounds for inadmissibility and deportation based on membership in or advocacy for specific political ideologies, including socialism, communism, Chinese communism, Marxism, and Islamic fundamentalism. It directly affects foreign nationals and permanent residents by making them ineligible for entry or citizenship if they have affiliated with or promoted these ideologies, with exceptions only for advocacy that occurred before age 14. The law defines these ideologies in detail and designates specific organizations as examples of each category, while also prohibiting court review of determinations made under these provisions. Additionally, the bill expands the grounds for revoking naturalized citizenship and requires the Attorney General to issue regulations implementing these changes.