She said: "I am asking every MP to think about delivering on the Brexit vote, doing it in a way that's in the national interest, doing it in a way that's in the interests of their constituents because it protects the jobs and livelihoods of their constituents".
A no-deal Brexit would not be a disaster, International Trade Secretary Liam Fox has insisted.
"If this deal is rejected in the House of Commons, we are left with an alternative: no deal, or no Brexit it all, " Tusk said. I've got a deal which delivers for the British people.
Downing Street said it had accepted a proposal which would see the Brexit debate be screened on the BBC at 8pm on Sunday 9 December - two days before a crunch vote in the Commons.
Labour, the Lib Dems, the SNP, the DUP and many Tory MPs have said they will vote against the agreement, which has already been agreed between the United Kingdom and EU.
Asked about a no-deal scenario, Dr Fox told BBC Radio 4's Today programme: "Well, I think, as Roberto Azevedo, director-general of the World Trade Organisation, said, it wouldn't be a disaster, but it wouldn't be a walk in the park either".
A powerful group inside Jeremy Corbyn's shadow cabinet is urging Labour to be ready to campaign for a possible second Brexit referendum if Theresa May's deal is defeated and the party can not force a general election.
With scores of backbench Conservatives threatening to rebel in the historic "meaningful vote", Mrs May might have to rely on Labour votes and abstentions to save her Brexit deal.
In an article for The Daily Telegraph, Mr Gyimah said he could not support the "naive" agreement with Brussels which was "not in the national interest".
The Bank of England issued forecasts on the impact of various Brexit deals
"The EU said there was nothing else available, but what you see in the [Brexit deal] is.a more ambitious free trade agreement than Canada, that ends free movement which Norway doesn't do".
Speaking to TalkRADIO, Mr McDonnell was asked if Theresa May's deal is voted down, and it leads to another public ballot, should there be an option to "throw the whole thing out" and stop Brexit altogether.
Britain's Prime Minister Theresa May speaks during a meeting with Japan's Prime Minister Shinzo Abe at the G20 Leader's Summit in Buenos Aires, Argentina, Saturday, Dec. 1, 2018.
The amendment, put down by a group of committee chairs, including Labour's Hilary Benn and prominent Tory Sarah Wollaston, calls for the Commons to be able to express its views about what should happen if Mrs May's deal is voted down. "Let's focus on the deal that we have negotiated with the European Union, a deal which is good for the United Kingdom and good for their constituents".
"In the 2017 manifesto, the Conservatives said that the country would leave the single market and the customs union".
"There was no footnote listing these exceptions".
It comes as one of May's most vocal opponents, Jacob Rees-Mogg, wrote of a "crisis of trust in British institutions" as he blamed "broken promises" in May's Withdrawal Agreement.
Dr Fox said he refuses to criticise his neighbouring MPs across the South West who aren't backing the deal.
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