 The rise of populist nationalist movements in Europe and increased isolationism here in the U.S. puts NATO at a crossroads, with European allies scrambling to prepare for a possible Trump presidency and the threat the U.S. may stop funding the war in Ukraine or pull out of NATO if other member countries don't increase their defense spending. Right now, 23 of the 32 NATO members are spending 2 percent or more of their GDP on defense, twice as many as a year ago.