Johnson refuses to say if he would quit if UK still in EU after Oct. 31

Boris Johnson, the favourite to become the next British prime minister, refused to say whether he would resign if the United Kingdom does not leave the European Union on Oct. 31, the current deadline for Brexit.In the early stages of the only scheduled head-to-head television debate with his rival Jeremy Hunt, Johnson refused to answer a question from Hunt whether he would quit if he failed to deliver his plan to deliver Brexit by the end of October.