This bill would prohibit cities and states that have "sanctuary" policies from receiving any federal housing grants administered by the Department of Housing and Urban Development. The legislation defines sanctuary jurisdictions as those that restrict sharing immigration status information with federal authorities or refuse to comply with federal immigration detainer requests from the Department of Homeland Security. The bill would apply to all new grant funds distributed 180 days after the law takes effect, and the HUD Secretary would work with the Homeland Security Secretary to identify which jurisdictions qualify as sanctuaries. No specific funding amounts or additional timelines are specified in the legislation. This bill would directly affect housing assistance programs in localities with sanctuary policies, potentially reducing available resources for affordable housing, community development, and related HUD programs in those areas.