Andrea Leadsom has quit her role as leader of the House of Commons over Theresa May’s Brexit deal.
The Conservative MP for South Northamptonshire has said that she no longer believes that the government’s approach “will deliver on the referendum result”.
Andrea Leadsom has resigned 'with a heavy heart'
In a letter to the Prime Minister, Ms Leadsom wrote: “I considered carefully the timing of this decision, but I cannot fulfil my duty as Leader of the House tomorrow, to announce a Bill with new elements that I fundamentally oppose.
“I fully respect the integrity, resolution and determination that you have shown during your time as Prime Minister.
“No one has wanted you to succeed more than I have, but I do now urge you to make the right decisions in the interests of the country, this government and our party.
“It is therefore with great regret and with a heavy heart that I resign from the government.”
The Prime Minister announced on Tuesday that the Withdrawal Agreement Bill would include "a requirement to vote on whether to hold a second referendum" and a choice over the UK's future customs arrangements, after discussions with her cabinet.
Ms Leadsom described a second referendum as "dangerously divisive".
She added: "I do not support the government willingly facilitating such a concession. It would also risk undermining our union which is something I passionately want to see strengthened."