During three and a half hours of tense debate on amendments to the EU Withdrawal Bill, government whips held whispered conferences with a handful of Tories on the Commons benches.
The European Union Withdrawal Bill, a complex piece of legislation meant to disentangle Britain from four decades of EU rules and regulations, has had a rocky ride through Parliament.
Other amendments from the Lords to be debated Tuesday include transferring the EU's Charter of Fundamental Rights into United Kingdom law and one forcing the government to negotiate to remain in the European Economic Area (EEA) like Norway.
An anti-Brexit protester waves an European Union flag opposite the Houses of Parliament in London, Britain June 8, 2018.
"I am trying to negotiate the best deal for Britain", she said.
Dr Lee said his main objection to Government policy was over the "wish to limit Parliament's role in contributing to the final outcome" and signalled he would rebel on the issue in the Commons later.
"It's not practical, it's not desirable and it's not appropriate", Davis said.
Ministers have conceded in principle to Tory rebels" demands for a "meaningful vote' on the eventual Brexit deal.
Five Labour MPs - Ronnie Campbell, Frank Field, Kate Hoey, John Mann and Graham Stringer - voted with the government.
"If, in the future, I am to look my children in the eye and honestly say that I did my best for them I can not, in all good conscience, support how our country's exit from the European Union looks set to be delivered".
A file photograph of justice minister Phillip Lees.
A Lords amendment to the EU Withdrawal Bill would have given MPs the decisive say on what happens over Brexit if they don't agree with the final deal with the EU.
"I am confident I can get a deal that allows us to strike our own trade deals while having a border with the European Union which is as frictionless as possible".
Another flashpoint could come when lawmakers vote Wednesday on an amendment seeking to keep Britain in a customs union with the EU.
He has also urged Conservative pro-Remain MPs to "change the course of Brexit" and vote accordingly on a series of upcoming crunch votes in the lower house of parliament. It also attacked the unelected nature of the House of Lords (which traditionally scrutinizes laws passed to it by the elected lower chamber), linking it to a perceived attempt to frustrate the Brexit process.