Dominic Cummings .... message was that if Brussels did not budge in Brexit talks, Boris Johnson would not fold but would simply take the UK out without a deal.

IOW, if the EU doesn't do what the UK wants they will hold their breathe until they turn blue and it will be the EU's fault!

Jesus Christ, Barnier, et. al., are dealing with three year olds.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre