In a speech aimed as much at the EU as those Tory members in the room, he warned Brussels that “tinkering at the edges” will not fix the frictions caused by the Protocol.
He demanded the EU be more “ambitious” in attempts to find a solution.
In July Lord Frost published his command paper which outlined his proposals to renegotiate the Protocol to make it more sustainable in the long term.
It included scrapping bureaucratic checks on goods travelling to Northern Ireland that have no risk of entering the single market, and removing the European Court of Justice as the arbitrator of the deal.
The EU immediately rejected the suggestions put forward by the UK, leaving both sides at an impasse.
While talks have continued between London and Brussels there has been little progress in finding a solution.
The European Commission is expected to publish its own proposals to solve frictions caused by the Protocol next week.
More to follow…