Amber Rudd has refused to rule out quitting the Government if Tory MPs are ordered to vote against moves to prevent a no-deal Brexit.
The Work and Pensions Secretary – who only rejoined the Cabinet in November – said she wanted to “wait and see” what position the Conservative whips take before making a decision.
Ms Rudd has called for a free vote next Tuesday night on an amendment in the name of Yvette Cooper which could potentially extend the Article 50 process until the end of the year as a way of trying to avoid leaving the EU without a deal.