During the last few weeks of his campaign, Trump predicted an outcome similar to the Brexit vote. In a nutshell, he was right. His voters and the Brexit voters were essentially the same kind of people with the same kinds of fears.
If you spin out the analogy to the present day, it shouldn’t comfort him very much. The British government is badly divided on how to proceed with Brexit. The pound has fallen dramatically. Investment has slowed to a crawl. Nationalist parties have a new cause. Stagflation and constitutional issues loom.
A lot of this is going to look familiar in the US over the next year or so.