LONDON, ENGLAND - JUNE 15:  Foreign Secretary Boris Johnson and Environment Secretary Michael Gove leave 10 Downing Street on June 15, 2017 in London, England. Prime Minister Theresa May is due to hold a series of meetings with the main Northern Ireland political parties today to allay mounting concerns over a government deal with the DUP in the wake of the UK general election.  (Photo by Chris J Ratcliffe/Getty Images)