The battle for the Conservative leadership has been dramatically transformed after Boris Johnson announced that he will not stand in the race to succeed David Cameron.
The former London mayor's decision not to join the battle leaves Home Secretary Theresa May as hot favourite to be the next Prime Minister.
It came after the shock announcement by fellow Brexit campaigner Michael Gove - who had widely been expected to be Johnson's running mate - that he was putting himself forward for the leadership.
Few things shock me in politics anymore, but I'm shocked Boris Johnson won't run to be the next UK ?? Prime Minister. #Brexit
-- Steven Anthony (@scanthony14) June 30, 2016
-- Andrew Alexander (@andrew_alex) June 30, 2016
In a dramatic press conference just moments before the deadline for nominations passed, Johnson said that the next Tory leader would have to unify his party and ensure that Britain stood tall in the world.
And he said: "Having consulted colleagues and in view of the circumstances in Parliament, I have concluded that person cannot be me."