 This is The World. I'm Marco Werman. Britain is heading for change. That's the promise of Keir Starmer, the man expected to become the next UK Prime Minister. Starmer leads the centre-left Labour Party, and he's polling more than 20 points ahead of Prime Minister Rishi Sunak and his Conservative Party. National elections are just a week away, but as The World's Europe correspondent Orla Barry reports, for many British voters, Starmer remains an enigma. There's one question Keir Starmer gets asked a lot.