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Theresa May is set to spring a surprise and win the third meaningful vote on her Brexit deal, according to one Conservative MP.

"I don't think she will (lose). I think she's going to get this across the line," Andrew Murrison, who has twice supported the deal in the Commons, told CNN.

Murrison was optimistic that the DUP's 10 MPs will flip towards May's deal, despite the vocal opposition of its Brexit spokesman Sammy Wilson earlier today. "My friends in the DUP, I hope ultimately, once they have the reassurances they need in full measure - I hope they support this deal," Murrison said.

"If they do, I think a large number on my side will come across," he added, also predicting that some Labour MPs would also flip if there were a movement towards the bill.

The prediction is a brave one, considering that May needs to turn 75 MPs towards her historically-unpopular plan.

Murrison said he was skeptical of the indicative votes process taking place tomorrow, and rejected the idea of revoking Article 50. "We had a referendum," he said. "That's how we decide things. We don't respond to petitions or marches."