LONDON — Rishi Sunak becomes Britain's third prime in under two months at a time when the U.K. faces what he has termed a "profound economic challenge" and as his Conservative Party struggles to heal divisive wounds from months of infighting.
He now leads the Conservatives with a substantial parliamentary majority inherited since the 2019 general election, when his former boss Boris Johnson helped win seats in areas of Britain that had never traditionally voted for the center right party.
