"PRETTY CLOSE"
Yet the future of Brexit remains uncertain as Johnson's opponents have passed a law demanding he delay Brexit unless he gets a deal approved.
The government has said it will both comply with this law and that Britain will leave the EU on Oct. 31 whatever happens. Johnson has not explained how he plans to take these two apparently contradictory steps.
As lawmakers mull one of the United Kingdom's most significant geopolitical moves since World War Two, hundreds of thousands are due to march towards parliament demanding another referendum on EU membership.
Parliament will sit from 0830 GMT on Saturday. Johnson will make a statement to lawmakers, followed by a 90-minute debate and then there will be a vote.
The Northern Irish Democratic Unionist Party (DUP) said it would oppose the deal and lobby a faction of around 28 hard line Brexit supporters in Johnson's Conservative Party to do the same.
"We will be encouraging (other lawmakers to vote against) because we believe it does have an impact on the unity of the United Kingdom, will spark further nationalist sentiment in Scotland and will be detrimental to the economy of Northern Ireland," the DUP's Sammy Wilson said.
"Voting this down tomorrow is not the end of the game, in fact it probably opens up possibilities for the government which are not available at present after a general election."
Without the DUP's 10 votes, Johnson will need Brexit-supporting Labour Party rebels to support his deal.
Saturday's vote will be "pretty close" but likely just fall short, John McDonnell, the second most powerful man in the opposition Labour Party said.
"I don't believe it will pass, I think it will be defeated but... the numbers are going to be pretty close," McDonnell told Sky News.
If the vote is a tie, then the speaker of parliament, John Bercow, would hold the deciding vote. According to vague convention, the speaker would seek to keep the issue open for further discussion.
