The leader of the Chega party in Portugal has threatened to block proposed reforms to the country’s social welfare system. The proposed “Prestação Social Única” (PSU), or Single Social Benefit, is at risk of rejection if the government does not agree to link access to benefits for immigrants to their contribution history. Chega is demanding that immigrants without prior contributions to the social security system face restrictions on receiving aid. This move signals a hardening stance on immigration policy from the far-right party, which holds significant political influence. The government has yet to respond directly to the ultimatum, but the threat could significantly impact the PSU’s passage. The PSU aims to streamline Portugal’s complex social support programs into a single, unified system. The potential veto raises questions about the future of the welfare reform and the broader debate surrounding immigration and social benefits.