((They)) have been grooming him for years
The Bullingdon Club, Oxford University
One of the most notorious, riotous, and exclusive of the college secret societies in the United Kingdom is the Bullingdon Club of Oxford University, which was founded around 1780. Its members are selected from the aristocracy and the most prominent banking, business, and political families in Britain. Former members have gone on to form a network of individuals in the top seats of power.
With such a successful alumni one might think that the Bullingdon must be an intellectual society, but it is far more concerned with fine dining. The club meets regularly for elaborate dinners and it has been alleged that many of these affairs have ended with restaurants being trashed, mischief being made, and the police being called. Former British Prime Minister David Cameron, former Chancellor of the Exchequer George Osborne, and current Prime Minister Boris Johnson have been dogged by a famous photo of them all dressed up in their bow-ties and tails for a group photo of Bullingdon Club members in 1987.