In the race to become the next U.K. prime minister, the two candidates' divergent views will particularly impact domestic taxation, climate policy and relations with the European Union. The United Kingdom’s governing Conservative Party is in the middle of a contest to elect its new leader, who will automatically become prime minister. In the coming weeks, the party’s roughly 160,000 members will have the opportunity to choose via postal voting between Foreign Secretary Liz Truss and former Chancellor Rishi Sunak. The contest will end on Aug. 31 and a winner will be announced on Sept. 5. This will end the premiership of incumbent Prime Minister Boris Johnson, who is now in power in a caretaker capacity after announcing his resignation in early July amid a series of scandals and accusations of mismanagement. According to opinion polls, Truss is currently more popular among Conservative voters than Sunak, though this could change...