Post-Second World War Europe has been able to prosper under the USA’s wing. The advent of President Trump undoubtedly has consequences for Europe and the rest of the world. The USA seems increasingly to be stepping away from a world order of its own creation and away from the delivery of international public goods expected from such a world leader. Trump’s personal style and ideological convictions pit him against what most of Europe’s political elites stand for. How real and lasting is this transatlantic decoupling? If Trump signifies an end to the USA’s unconditional support, an unprepared Europe will increasingly have to fend for itself at a time when it is more divided than ever.