NEW YORK—British Prime Minister Boris Johnson cautioned on Sept. 23 that there would be no Brexit breakthrough at talks with European leaders in New York as gaps remained, but said significant progress had been made on striking a deal.
Three years after the United Kingdom voted in a referendum to leave the European Union, hopes of an emerging deal to ease the transition were stoked when Johnson said that the shape of an accord was emerging, and European Commission President Juncker said an agreement was possible.
