DAVID Mundell could be sacked after abstaining on the UK Government’s motion to rule out a no-deal Brexit.

The Scottish Secretary was one of four Cabinet ministers believed to have disobeyed the Government and not voted in the Commons, along with Amber Rudd, David Gauke and Greg Clark.

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It is believed those Cabinet ministers are hoping to retain their positions.

Mundell has since tweeted that he remains behind the Prime Minister's deal, which implicity means he will not resign over the issue.

He said: "I’ve always opposed a no-deal Brexit.

I’ve always opposed a no deal Brexit. The House made its view clear by agreeing the Spelman amendment, I didn’t think it was right for me to oppose that.The PM has my full support in her objective of leaving the EU with a Deal to deliver an orderly Brexit — David Mundell (@DavidMundellDCT) March 13, 2019

"The House made its view clear by agreeing the Spelman amendment, I didn’t think it was right for me to oppose that.

"The PM has my full support in her objective of leaving the EU with a Deal to deliver an orderly Brexit."

The convention of collective cabinet responsibility dictates that members of the Cabinet resign should they vote against their government or abstain on a government motion.

Commenting on Mundell abstaining on the vote to take no deal off the table, shadow Scottish Secretary, Lesley Laird said: “This is an absolute abdication of duty.

“Last night David Mundell proclaimed that he would vote to take no deal off of the table but he appears to have caved under pressure.

“No deal is an economic and social calamity for our country. If he is not sacked, he should resign for the simple reason that his party thought it was a good idea to inflict that on the Scottish people.”

Meanwhile a Department for Work and Pensions source said that Sarah Newton has resigned as a minister at the DWP over the Brexit vote. She is believed to have voted against the Government.