At the beginning of its G20 year, the German Presidency attached little priority to trade policy. That stance had to change with the ascension to office of a U.S. President unwilling to follow the diplomatic niceties on trade policy of his predecessors. Moreover, following the U.S. withdrawal from the Trans-Pacific Partnership (TPP) in the first quarter of 2017, the fear grew that election-era protectionist slogans might be converted into action by the United States. This article assesses how effectively the German Presidency and the G20 process in general managed the Trump-induced 'stress test' on trade policy. The non-binding form of international economic cooperation, evident with the Leaders’ Summit appears, in our opinion, to have been only partially successful.