The row between Philip Hammond and David Davis centred on the Brexit secretary’s plan to push for a Canadian-style trade agreement with the EU

Philip Hammond and David Davis had a row on Wednesday that left the chancellor fuming and fearing his colleague’s post-Brexit plan was “bonkers”.

They met before the cabinet convenes on Tuesday to discuss what Britain should look like after the end of the Brexit transition period. It will see secretaries of state air their views for the first time on how closely Britain should remain aligned with EU rules.

One source said that at the heart of their disagreement was the future economic relationship with the EU and characterised it as a “big barney”.

The row centred on Mr Davis’s plan to push for a Canadian-style trade agreement with the EU after Brexit, an aim he has stated publicly and which Mr Hammond fears