Frank Field faced jeers when he said Labour supporters voted for Brexit, as the party’s MPs threatened to derail the process.
During the first Commons session on the European Union (Withdrawal) Bill, which seeks to transfer European law into British law, the Brexit-backing MP also clashed fiercely with Labour MP Hilary Benn, in comments he immediately withdrew.
Mr Field, MP for Birkenhead said Labour members "need educating as to where Labour voters are”.
He said: “I am supported by people largely whose constituents agree with me and not their views.
"And how they deal with that is not my problem. I agree it is a difficult problem.
“Generally speaking, the larger the Labour majority in a general election – and the one before that and the one before that – the more likely they were to vote leaving.
"Labour voters – the larger the majorities generally speaking – the more clearly they spoke about Brexit.”
Frank Field said his fellow Labour MPs need 'educating" and took a dig at Hilary Benn
Debate focused on the Government's desire to include an exit date to leave the EU, of 11pm on March 29, 2019.
Mr Field agreed that a date or leaving the EU was needed, comparing the withdrawal to a completion date on buying a house.
Fellow Labour MP Hilary Benn, son of late Labour grandee Tony Benn, dismissed the analogy, saying: "Nobody commits to a date to buy a house before they know what it is they're buying."
Mr Field, who was sat right next to Mr Benn, sniped: "I've always bought my houses, never inherited them."
Mr Field apologised to Mr Benn after making his remark
He immediately withdrew the remark and apologised after Mr Benn said he had in fact bought his own house.
There was in-fighting on both sides of the house as Remainers and Leavers of different loyalties clashed over the Bill.
Former chancellor Ken Clarke labelled the proposal to put the exit date into law "ridiculous and unnecessary", adding: "It could be positively harmful to the national interest."
Tory former attorney general Dominic Grieve told MPs that no amount of "arm twisting" would make him vote for the amendment.
The Bill will return for its second day of committee today.
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