The course of Brexit was set in the hours and days after the 2016 referendum. / It was at 6:22 a.m. on June 24, 2016 — 59 minutes before the official tally was unveiled — that the European Council sent its first “lines to take” to the national governments that make up the EU.

Not satisfied, though, the U.K.'s conservatives may look to replace her with... Boris Johnson.

The former head of the government legal service resigned when No 10 threatened to break an international treaty. With the difficult reality of Brexit now upon us, I asked whether we risk a repeat offence.