The Leave campaign undermined the legitimacy of the first referendum

The Vote Leave campaign employed a litany of underhand campaigning tricks to get voters to back Brexit. Not only was there the high-profile claim that once Britain left the EU it would have an additional £350 million per week to spend on the NHS, but it also gave hundreds of thousands of pounds to a firm linked to Cambridge Analytica. ^{[2] [3]} Following a comprehensive investigation, Britain’s electoral watchdog, the Electoral Commission, fined Vote Leave £61,000 for exceeding the spending limit of £7 million by some £500,000.^[3] It still remains to be seen in what other ways Vote Leave campaigned in breach of British law. An inquiry is still being carried out by the Information Commissioner’s Office investigating Vote Leave’s use of voter’s personal data. It may yet find that Vote Leave breached more campaign laws.^[4] Given the findings, it is clear that the Vote Leave campaign behaved illegally. Therefore, the first referendum cannot be considered fair or legitimate. The only logical move would be to have another referendum in which both sides campaign within the Electoral Commission’s legal guidelines.

Vote Leave broke UK laws regarding campaign financing. Therefore, its referendum victory is not legitimate. Therefore, there should be another legitimate referendum.