The EU says it won’t renegotiate the Brexit deal, but could its member states say otherwise?

The chances of the withdrawal deal being reopened seem slim but, as Jon Stone explains, the UK will look for fractures between EU members

Poland’s prime minister Mateusz Morawiecki and Theresa May shake hands (Reuters)

Theresa May wants to head back to Brussels to renegotiate the Brexit deal.

Despite EU assurances that there is no more talking to be done, it remains unclear what sort of reception she can expect.

Why does Theresa May want to renegotiate the Brexit deal?