May's stubbornness at [repeatedly] not stepping down and [virtually] the entire party's reluctance to head the warnings of their impending doom, lead me to think that they have deliberately let this happen.
Under orders from POTUS, maybe - as payback for the UK's, and May's personal role, in Spygate.
When you factor in the rebirth of Farage as a serious political contender, you do have to wonder if Trump has had a hand in all of it.