David Cameron resigned, and with him both Boris Johnson and Nigel Farage who were leaders of the exit campaign both stood down too, in the case of the former he withdrew from the leadership race following the PM's decision to leave.
Following that all kinds of ructions happened within the Labour party, half of the shadow cabinet resigned and Hilary Benn was sacked. Angela Eagle tried and is still trying to stage a coup, all but a small core of support are trying to get rid of Jeremy Corbyn despite him being voted for with the biggest mandate the party has ever seen.
Meantime Theresa May walked into power having been voted for by nobody. I'm not even going to go into the fandango with the leadership contest and the leaked emails regarding Michael Gove and Boris, or Andrea speaking as a mother Leadsom...whatever happened it was always going to be like a decision between Anthrax, Ebola and Sarin.
The new cabinet meant George Osbourne is out on his arse, no place for Gove or Nicky Morgan, every cloud! - but best (worst) of all, Boris Johnson is Foreign Secretary....the most ridiculous appointment since The Covent Garden soup company appointed Lucretia Borge executive chef.