The field is starting to slowly narrow (there are still 22 candidates running) but the coming months could see the field continue to dwindle.
Throughout the Trump presidency, there have been cultural flashpoints where the divisions of the country have been exposed.
A look at Boris Johnson’s eight years as Mayor of London show some early warnings for the Labour Party ahead of the next general election.
Boris Johnson will delegate power to his Cabinet and No 10 lieutenants, letting them govern while he presides as Britain's ambassadorial chairman. The new Prime Minister will approach the job in precisely the opposite way to Theresa May.
Johnson must tread a narrow path in his first 100 days.
Measurement and evaluation