Theresa May's battle with Nicola Sturgeon for the future of the Union turned personal today as the two women traded barbs over Scottish independence.
The First Minister suggested she had a more solid mandate than the "unelected" Prime Minister, prompting the Conservatives to suggest Sturgeon had "gone the full Donald Trump".
Setting the tone for what is likely to be a long and bitter fight over "indyref2", Sturgeon appeared riled by suggestions on Twitter that she does not have a mandate for a referendum because she has no overall majority in the Scottish Parliament.
She tweeted: "A quick reminder: Tory vote in [general election] 2015 - 36.9 per cent. SNP constituency vote in [2016 Scottish election] - 46.5 per cent. Trading mandates does not put PM on strong ground."
Taking a swipe at the fact that May has not fought a general election and was unopposed in the party leadership contest, she added: "In addition, I was elected as FM on a clear manifesto commitment re #scotref. The PM is not yet elected by anyone."