Rep. Chip Roy (R-Texas) introduced immigration legislation on Monday titled the "Measures Against Marxism's Dangerous Adherents and Noxious Islamists Act," or MAMDANI Act.

The bill proposes amendments to the Immigration and Nationality Act that would expand federal authority to deport, denaturalize, deny citizenship or bar entry to migrants who are members of specified groups. The legislation targets individuals associated with what Roy characterizes as Marxist or Islamist organizations.

The proposal would modify existing federal immigration law, which currently governs deportation and naturalization procedures. Roy's bill seeks to add new grounds for immigration enforcement actions based on ideological group membership.

Details about the specific organizations or criteria that would trigger enforcement actions under the proposed legislation were not immediately available. The bill represents Roy's latest effort to strengthen immigration enforcement through legislative measures.

The legislation comes as immigration policy remains a prominent issue in Congress, with Republican lawmakers pursuing various approaches to tighten border security and enforcement mechanisms. Roy has been an active voice on immigration issues during his tenure in the House.