PoliticsIs the US retreating from the world? Charles Kupchan on the future of US global leadership

US troops are leaving Iraq, American bombers are being withdrawn from Britain, and Washington is reducing its international commitments. Is Donald Trump reshaping US foreign policy, or is America abandoning its role as global leader? DW asks Charles Kupchan of the Council on Foreign Relations and Georgetown University whether this is strategic restraint, renewed isolationism or the start of a more dangerous world.