Like identical twins raised in different homes, the Trump and Brexit projects have ended up remarkably similar. They were similar in their advertising in 2016 and are now similar in the way they actually work — even if the advertising isn’t similar to the way they work.
Both have broken down over the issue of a hard border with a neighbouring country. Both are flirting with a trade war. Neither looks able to pass any more legislation.
It’s common to lump all contemporary populisms together. But Anglo-American populism is a unique variant: a mixture of wronged superpower vengeance plus buccaneering capitalism. Here is the Trump-Brexit governing philosophy, as revealed in power: