MPs support May after she agrees to set out her EU withdrawal plans
MPs have overwhelmingly backed Theresa May's plans to trigger the process for quitting the European Union by the end of March next year on condition the PM reveals her strategy.
The Prime Minister took the wind out of a potential Tory rebellion in the symbolic Commons vote after conceding on Tuesday to set out the direction Brexit negotiations will take and explicitly challenged members of all parties to support the timetable for activating Article 50.
Tory Europhile Ken Clarke and Labour's Ben Bradshaw, David Lammy and Chris Leslie opposed the first vote - a technical move adding a government amendment to the original Labour motion calling on the PM to set out the exit strategy. The non-binding motion was approved by 461 votes to 89, a majority of 372. MPs then backed the changed motion calling on the government to publish its Brexit plan and to trigger Article 50 before March 31, by 448 votes to 75. Mr Clarke opposed that motion, joining a group that included nine Labour MPs, 51 SNP MPs, and five Liberal Democrats.
Brexit Secretary David Davis had promised MPs that the government will set out its "strategic plans" before launching the formal mechanism for withdrawal from the EU, but said it will not reveal anything which might "jeopardise our negotiating position".
Former chancellor Mr Clarke said Mrs May's promise to reveal her plan was "extremely vague", and called for it to be set out in detail in a White Paper for publication before the invocation of Article 50.
Conservative Remain campaigner Anna Soubry said she was supporting the proposals but admitted "I am nervous and I am concerned" over the lack of debate in Parliament on the departure plans.
Mr Bradshaw, a Labour former cabinet minister, said he was not backing the government timetable because "it in effect gives a blank cheque for us to invoke Article 50 by March without any of us being any the wiser about the Government's intentions today".
But Mr Davis, responding to an opposition day motion in the Commons calling on the government to reveal its plans, insisted ministers must retain "room for manoeuvre" to respond with "a high degree of agility and speed".
Shadow Brexit secretary Sir Keir Starmer insisted the plan must set out whether the government intends to keep Britain in the European single market or customs union, or to seek a transitional arrangement to cover the period immediately after Brexit.
"There is no mandate for hard Brexit," he said. "There is no consensus for hard Brexit."
Mrs May's last minute decision to promise a plan amounted to the government "caving in" at the prospect of defeat, Sir Keir added.
The PM took the step on Tuesday evening amid reports of a planned revolt by as many as 40 Tory backbenchers.