 of MPs will worry that Mr Sunak could water down British red lines to get a quick deal on fewer border checks. Ms Truss was forced to reassure the ERG that Britain would not give up on its demand to end the jurisdiction of the European Court of Justice (ECJ) in Northern Ireland. The backbenchers had got skittish amid the improved mood music between London, Dublin and Brussels and rebooted talks over the Protocol after Ms Truss was appointed leader. The defenestration of Ms Truss, her mini-Budget and appointment of ex-Remainer Jeremy Hunt as Chancellor led to fears that Project Fear was back on the march and the Left of the Tory party was reasserting itself. New PM faces a dilemma Mr Sunak will soon face a dilemma. Any deal over the Protocol with the EU will necessarily involve compromise on both sides. The EU insists that, if Northern Ireland is to keep the unique dual access to the EU and UK markets afforded to it by the Protocol, it must accept the ECJ as the final arbiter of European law. A fix could be found where the ECJ is kept at arm's length, and an arbitration panel set up for disputes, but that may not satisfy unionists. The Brexit-supporting DUP is even less likely to stomach a softening of UK demands than its allies in the ERG. To the Government's dismay, the Northern Ireland Protocol Bill - a unilateral alternative){kind=link}
Tory Right could go to war with the new PM if he takes a soft stance over the Irish Sea border treaty
Rishi Sunak will find himself at war with the Tory Right if he caves to Brussels over the Northern Ireland Protocol.
Brexiteer backbenchers supported Liz Truss for leader partly because they feared Mr Sunak was softer on the Irish Sea border treaty.
When he was Chancellor, Mr Sunak argued in Cabinet against using Article 16 of the Protocol to suspend parts of the agreement.
Brussels has warned invoking the clause would risk a trade war, which the new Prime Minister felt Britain could ill afford during the cost of living crisis.