Senior figures in Kemi Badenoch's shadow cabinet are drawing up plans to review the Scotland Act and potentially strip powers away from Holyrood.

First Minister John Swinney is calling on MSPs to unanimously back Scotland's right to decide its future in Parliament, setting up a high-stakes constitutional showdown.

Three Holyrood parliamentary committees have officially declined a Westminster invitation to jointly investigate the Peter Murrell embezzlement scandal.

As constitutional relations hit rock bottom, political leaders and experts debate the future of the UK amid deepening friction between London and Edinburgh.