New Conservative Party leader and incoming prime minister Boris Johnson arrives at the Conservative party headquarters in central London on July 23, 2019. - Boris Johnson won the race to become Britain's next prime minister on Tuesday, heading straight into a confrontation over Brexit with Brussels and parliament, as well as a tense diplomatic standoff with Iran. (Photo by Niklas HALLE'N / AFP) (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)