Boris Johnson frequently said he would not ask the EU for a Brexit extension beyond 31 October. He said on TalkRadio on 25 June: “We are getting ready to come out on October the 31st...Do or die, come what may.” Two days later he said at a leadership hustings: “Kick the can again and we kick the bucket, my friends, that’s the sad reality.” In his first speech as prime minister outside Downing Street, he said: “We are going to fulfil the repeated promises of Parliament to the people and come out of the EU on October the 31st, no ifs or buts”. In a speech inside No. 10, Johnson repeated: “There are no circumstances in which I will ask Brussels to delay. We are leaving on 31 October, no ifs or buts”. In a speech to the Commons he said: “We will leave on 31 October in all circumstances. There will be no further pointless delay.” In parliament on 19 October, he said: “I will not negotiate a delay with the EU; neither does the law compel me to.”
Britain did not leave the EU on 31 October.
Johnson repeatedly insisted that Britain would leave the EU on 31 October. He broke all of these promises.