In 2014 Cameron demoted Gove from Education Secretary. Cummings was Gove’s special advisor. They go back a long way. https://en.wikipedia.org/wiki/2014_British_cabinet_reshuffle

‘Michael Gove's move from Education Secretary to Chief Whip, widely perceived as a demotion, came after Conservative campaign chief strategist Lynton Crosby warned Cameron that Gove's brand was "toxic" in polling.’

‘The move was criticised by many on the right, including Gove's wife, Sarah Vine, and his special adviser, Dominic Cummings, who said the move constituted Cameron's "surrender" to education pressure groups.’

I have a hunch Gove’s role in the demise of Great Britain has been underestimated.

Seems odd to me that the “successful” Cameron was not able to make a success of things but fell victim to those plotting against him.

I doubt that a “failing” Johnson will last very long.