Michael Gove, to his credit, found it personally very hard to break from the Prime Minister, almost his oldest friend in politics.
But the minor treacheries of Johnson or Gove pale into insignificance compared to the serial, scheming, unprincipled betrayals by the majority of the Cameron Cabinet.
Almost without exception, Mr Cameron and his ministers crawled their way up the greasy poll by pretending to be Eurosceptic.
This was certainly the case with the Prime Minister himself. When he stood for the nomination in his safe seat at Witney 15 years ago, he courted, and was helped by, the Eurosceptics.
Here’s one he did earlier – why the EU is like a lobster….