Barack Obama has been a mentor to Keir Starmer, who is likely to become UK Prime Minister after Thursday's election.
Christopher Furlong/Getty Images, Spencer Platt/Getty Images
- Keir Starmer is poised to become the UK's next prime minister.
- He's had help opening up about his personal story from an unlikely source: Barack Obama.
- Experts say Obama could advise Starmer on handling Trump if he's reelected president.
Britons are heading to the polls, as the UK gears up for a radical change in leadership.