Other pro Brexiteer Cabinet Ministers could follow Davis and bring down May's government or, if not that, so weaken her position that Tories demand she stands down as leader.
It could lead to a bo confidence vore in Theresa May and theelection of an alternaive leader of the Conservative party - it opens the way for Jacob Rees Mogg to become PM He's a principled pro-Brexiteer.
No confidence - sorry for typo