I don’t think Cameron did much serious negotiation on this front. He resigned the evening of the referendum results.
It was a deliberate choice by his successors to pursue a hard Brexit. A softer Brexit was always possible and likely would have been more acceptable to the EU, as it would have had less financial impact and disruption to trade.
It was a deliberate choice by his successors to pursue a hard Brexit. A softer Brexit was always possible and likely would have been more acceptable to the EU, as it would have had less financial impact and disruption to trade.