Daniel Hannan has claimed if a second referendum took place, it would be "rigged" against Leave voters.
The Conservative MEP told Julia Hartley-Brewer a second referendum would offer up a chance to vote for Theresa May's Brexit deal, or to remain in the EU, leaving those wanting a so-called hard Brexit without "anyone to vote for".
"For the first time in 30 months I've started to think it is now likely that Parliament will technically reverse Brexit," Mr Hannan said.
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"I'm afraid it is now looking like a referendum, which is rigged in the most obvious sense," he continued. "The choice will not be between Leave and Remain, it will be between Theresa May's deal or remaining on the terms that we were two years ago."
Daniel Hannan. Image: Getty
The politician said he would back a "mass boycott" of a second vote if there was "no Leave option on the ballot paper".
"We should be clear about what we're dealing with, the biggest vote in British history will have been overturned," he said.
"I don't see that we would have any option except to organise a mass boycott."