To be honest I don't think any of them actually know what is or isn't possible once it was triggered and I expect it will tie up legal boffins for decades if they get involved again.
Also I think it highly unlikely any leader would want to back out as it will be seen that referendums are pointless.
Back to the debate, I can't honestly see any other outcome than May getting elected, i tend to sit on the fence and vote for the policies which make sense for me at the local level however I think this time I'm going to have to vote for which party I think will get the better deal from Brexit.
Am I missing something, thw vote was to leave, that's what the majority of people voted for, so to change it wouldn't there have to be a referendum to decide if we have another refernedum to votre leave or stay!!? Just asking