[---] In this article, we assess the status of four major areas of the work of the UN: peace and security, international development, humanitarian assistance, and human rights. In each, we argue that major accomplishments are currently at risk of being rolled back or diluted. Across the core work of the organization, multilateral approaches are becoming less relevant to the tasks of reducing conflict risks, building sustainable development, meeting the needs of vulnerable populations, and helping to establish accountable, inclusive societies, not least because a growing number of national leaders find some or most of these objectives superfluous or noxious relative to their own narrowing interests. [---]