I am sympathetic to the people's vote campaign but just one question: what do they want to vote on? The real 'final deal' won't be available for years. It will be negotiated in the transition period. The withdrawal agreement is only going to contain a vague declaration about how the final deal is desired to be. But if they wait for the final deal then Remain will no longer be an option because the UK will be legally out by then.

Do they want to vote on the withdrawal agreement? That's just a rerun of Remain/Leave dressed up differently.

_{Schengen is toast!}