Brexit latest: Tory turmoil as Theresa May and rebels clash again over powers to block no-deal outcome

The battle over Brexit was set to dominate Parliament again today as the Prime Minister and Tory rebels squared off over whether MPs get powers to block a no-deal outcome.

With the EU (Withdrawal) Bill returning to the House of Lords on Monday, Peers looked ready to launch a fresh round of parliamentary "ping pong" and send amendments back to the Commons which Theresa May has said would tie her hands in negotiations with Brussels.

Tensions heightened after former attorney general Dominic Grieve warned that the Tory rebels he leads could "collapse" the Government if they disagree with the final outcome of withdrawal talks and had the right to a proper say on Brexit.

Mr Grieve insisted rebels would only accept a "meaningful vote" and not the "slavery clause" the Government was offering.

Pro-Brexit MP Nigel Evans said he was "staggered" by Mr Grieve's remarks.

He told BBC Radio 4's The Westminster Hour: "I don't want to fetter my Prime Minister while she's negotiating the best deal for Britain.

"And part of that has got to be where, if Michel Barnier tries to give us a very bad deal, that she can turn around and say 'no, I'd rather not do that'."

Under Government plans, if MPs reject the agreement reached by Mrs May with Brussels, or if no deal has been obtained by January 21, Parliament will be offered the opportunity only to vote on a "neutral motion" stating that it has considered a minister's statement on the issue.

Crucially, the motion will be unamendable, meaning that MPs cannot insert a requirement for Mrs May to go back to the negotiating table, extend the Brexit transition or revoke the UK's withdrawal under Article 50.

Expected Lords amendments to the landmark Brexit legislation are set to return to the Commons on Wednesday.