No boffos just barfing and borrish Boris!
The first part of the tour – which begins in Boston before heading to New York and Washington – could be hit by bad weather. The Boston authorities are advising people to stay at home because of the threat of a severe snow storm.
Last month Mr Johnson flew to meet the Kurdish Prime Minister. He was pictured taking aim with an AK47 alongside Peshmerga soldiers fighting against Isis. Critics in the London Assembly claim he has “mentally checked out” of his mayoral role.