MPs have introduced an amendment that allows MPs to set the order of business in Parliament on 4 September , in an attempt to prevent a no - deal Brexit . The amendment , which passed by 328 votes to 301 , lets MPs debate a bill preventing the UK from leaving the EU unless a deal is reached , or MPs explicitly refuse to leave without one . Prime Minister Boris Johnson said he would seek to trigger a general election if MPs vote to force another Brexit deal . Johnson also lost his slim working majority of one when MP Phillip Lee defected to the Liberal Democrats .
MPs have passed an amendment that allows parliamentarians to set the order of business in Parliament on 4 September, in an attempt to prevent a no-deal Brexit. The amendment, which passed by 328 votes to 301, lets MPs debate a bill preventing the UK from leaving the EU unless a deal is agreed, or MPs explicitly vote to leave without one. Prime Minister Boris Johnson said he would seek to trigger a general election if MPs vote to force another Brexit delay. Johnson also lost his slim working majority of one when MP Phillip Lee defected to the Liberal Democrats.