United Kingdom

We in the U.S. have no experience with a nationwide popular referendum. Could Parliament by simple majority order a revote that would supersede the earlier result?

If Parliament has that power, that leaves two more questions. Politically, is there any prospect that it could happen (maybe with most of the Labour MPs plus some Tory defectors)? If a revote happened and rejected Brexit, what would be the UK's status with the EU? I vaguely recall that the EU's position by now is that the UK has withdrawn, and any change from here on wouldn't be canceling the withdrawal but would instead involve an application for admission, subject to the same procedures as would affect any country that had never been a member. If that's the case, maybe the EU would demand some concessions that the UK would not have had to give, if there had never been a notice of withdrawal, and which the UK would now find unacceptable.

Thanks for any light you (or anyone else) can shed.