MPS will live to "regret" forcing the Government into publishing legal advice on Brexit.

Commons leader Andrea Leadsom confirmed the advice they tried to keep secret would indeed be published this morning after a humiliating defeat last night.

MPs voted to defy the Government and release the full documents - rather than just a summary.

It was just one of three votes Theresa May's administration lost last night, and marks the first ever time ministers in a British Parliament has been found in contempt.

But Ms Leadsom said this morning: "I think any parliamentarian who wants at some point in the future to be in Government is going to live to regret their vote last night."

She said it undermined "decades if not centuries of convention" where ministers were able to receive advice in secret.

And she would only back Mrs May as PM "at the moment".

The Prime Minister will face PMQs in the Commons later today, followed by the continuation of the debate on her Brexit deal.

MPs will have their crunch vote on it next week - where the PM is all but certain to lose.

Ms Leadsom said today that if the PM's deal was thrown out in the vote next week, Britain would leave without a deal.

Other MPs are determined to stop that happening, saying there's no majority for that to pass in the Commons.

"Unless government were to do something completely different to change tack, or indeed to pass this deal, then we will be leaving the EU on 29 March next year without a deal, so it defaults to no deal," Ms Leadsom said this morning.

Last night MPs won the power to block No Deal and call a second referendum if the PM lost the vote.