Here’s something you don’t know about John Bolton: He was the only foreigner — not just the only American, but the only foreigner — in the headquarters of Vote Leave when the Brexit referendum results came down in 2016.

True, his presence was accidental. The London studio used by Fox News just happens to be in the same building, and I had asked John in after bumping into him on the stairs. Still, it could not have been more apt from a symbolic perspective. No one has been a stronger defender of Brexit, and indeed of national sovereignty in general, than the man with the 1890s bartender mustache.