After World War II, the United States helped construct and lead an international order which prioritized state sovereignty, territorial integrity, non-intervention, and the peaceful resolution of disputes, with the aim of promoting global stability and the avoidance of nuclear conflict. With the end of the Cold War, the new order expanded to include economic openness, security cooperation, and the promotion of liberal democracy. China, India, and Russia liberalized their economies and became more integrated in the global economy and multilateral institutions. Over the past decade, however, the international liberal order is under strain. Under President Trump’s second term, the U.S. seems to be entering, if not reinforcing, a new era of great power politics. Global cooperation and free trade are on the decline and major powers are asserting their economic self-interest and security priorities, at times even claiming a special dominant role in their so-called “spheres of influence.” This roundtable of CMC faculty—Hilary Appel, Jean-Pierre Murray, Hicham Bou Nassif, and Jenny Taw—will discuss recent developments in US foreign policy and examine what role the U.S. should play in global affairs, as the rivalries between great powers intensifies.