Meanwhile, the SNP has appointed the former head of Stirling Council as its interim boss.

The Sunday Mail understands Carol Beattie, who was Chief Executive of Stirling Council until May this year, will take over from Murray Foote who quit unexpectedly yesterday.

SNP Depute Leader Keith Brown MSP said: “Today the party’s National Executive Committee has appointed Carol Beattie as interim Chief Executive, and I warmly welcome her to this role at a crucial time for our party.

“She brings considerable experience to the role and her appointment will continue the work, under John Swinney’s leadership, to ensure a professional, modern, dynamic election-winning organisation.

“The SNP remains the dominant political force in Scotland – and Carol Beattie’s appointment will ensure we remain equipped for the tasks ahead.”

Ms Beattie said: “It’s a huge honour to take up the position of interim Chief Executive of the SNP.

“I look forward to meeting the team at the earliest opportunity and working with colleagues whose efforts have delivered the success of the SNP to date.

“I intend to waste no time in getting on with the important job of strengthening the party’s headquarters functions and supporting the party as a formidable national organisation.”

  • Critics of the SNP and the Scottish Parliament will see this appointment as yet another indication of the chaos in Scottish politics and confirmation that the Holyrood parliament, which celebrated its 25th birthday this year, as no better than a local authority.  Or as Sir Billy Connolly once put it “a pretendy wee parliament”. Top of page picture is of SNP HQ, where large sums have been spent on a media room.