Boris Johnson has accused suppliers of a second British referral of "doing the Scottish National Party's work" by making a second Scottish independence vote more likely and threatening of the union.
In a speech in Aberdeen on Friday, the former Foreign Secretary and Perennial Conservative Leadership hopes to turn the tables into blockers who argue that Brexit would increase the risk of a second independence referendum.
The British first minister, Nikola Sturgeon, said that Bruce would have such a catastrophic impact that Scottish voters should have the option to vote again, after rejecting independence in 2014.
Johnson said: "[A second independence referendum] Would be nothing less than a flagrant breach of promise to the people of the whole country that, when the people of Scotland voted for the matter – as they did in 2014 – with decisive effect, this verdict would be respected for a generation.
"And, frankly, I say to all those now competing for a second US referendum in the UK – I mean Tony Blair, Alastair Campbell, and I'm afraid not only John Major but even some Cabinet ministers have the idea – they should They know better and they give help and support to those who want to vote for another independence in Scotland.
"To emphasize the verdict of the EU referendum, they are undermining the decision of 2014, and they are doing the work of the SNP and they are threatening the union, and let us be in no doubt the damage the nationalists would do. They would not only destroy the oldest and most successful political union in the world, they would destroy this very concept of Britain. "
Johnson was seen as one of the leading contenders to replace theresa may when she steps down, as she promised to do when a broxit deal was completed.
One of the hurdles of the Uxbridge and South Ruyshe MP faces is the perception of Scottish Conservatives that his fondness for a harsh brocade and sometimes an abrasive style would leave off voters in the country.
Johnson was among a series of potential Candidate Leadership Candidates who were "discouraged" by the Scottish Torrey leader, Rod Davidson, from attending the Scottish Conservative Conference in Aberdeen last weekend due to concerns their appearance might distract from her return of maternity leave.