Jeremy Corbyn is expected to launch a new bid to frustrate Brexit by forcing Theresa May to send her final deal back to Brussels if Parliament votes against it.

The Supreme Court will on Tuesday morning return its judgment on whether Parliament should be given a vote before formal Brexit negotiations begin in March.

Ministers expect to lose the case and are prepared to go to the Commons with an Article 50 bill within hours of judges announcing their ruling.

Mr Corbyn is planning to table an amendment which would formally require the Government to commit to a second vote on the final terms of any deal before Britain leaves the EU.