When Britain flummoxed and flabbergasted the world by voting in 2016 to leave the European Union, it seemed like a one-off: An unexpected gamble by a normally prudent country, but nothing that signified a profound shift beyond the United Kingdom and Europe.
Donald Trump’s election a few months later proved otherwise. Brexit was a portent, not a fluke. The British electorate may have been incautious, but it was ahead of the trend. The desire, however misplaced or ugly, to “take back” control of a country from supercilious political elites was a global phenomenon, not a local event.
That’s a lesson Democrats ought to draw, quickly and clearly, from the thumping victory Boris Johnson won for the Conservative Party on Thursday.