The SNP's special conference should be postponed to allow for a leadership race, the party's Westminster leader has said.Following the decision of the UK Supreme Court that Holyrood could not legislate for another referendum, Nicola Sturgeon announced the party would meet on March 19 to discuss next steps - where she would back using the next general election as a de facto referendum.But with the First Minister's shock announcement of her resignation on Wednesday, the conference has been cast in

The SNP's special conference should be postponed to allow for a leadership race, the party's Westminster leader has said.Following the decision of the UK Supreme Court that Holyrood could not legislate for another referendum, Nicola Sturgeon announced the party would meet on March 19 to discuss next steps - where she would back using the next general election as a de facto referendum.But with the First Minister's shock announcement of her resignation on Wednesday, the conference has been cast into doubt.