LONDON — Boris Johnsons victory puts Brexit on track — but this is just the beginning. After winning a strong majority in the December 12 general election, Johnson returns as prime minister with the political capital to pull the U.K. out of the European Union in early 2020 and move onto negotiations about Britains future relationship with the bloc. In his victory speech, Johnson declared the result puts the debate on a second Brexit referendum to bed. “This election means that getting Brexit done is now the irrefutable, irresistible, unarguable decision of the British people. And this this election I think we put an end to all those little miserable threats of a second referendum,” he said. Having insisted all Tory candidates backed the Brexit agreement he struck with Brussels in October, the prime minister can push his deal through the U.K. parliament without further delay. Brussels said Friday it was ready to start the next phase of negotiations. “Parliament as a whole will be ..