A Claim of Right for Scotland was a document crafted by the Campaign for a Scottish Assembly in 1988, declaring the sovereignty of the Scottish people. It was signed by all then-serving Labour and Liberal Democrat MPs, with the exception of Tam Dalyell (Labour), a strident opponent of devolution. The list of signatories included several MPs who would later attain high office, including future prime minister Gordon Brown, future chancellor Alistair Darling, and future leaders of the Liberal Democrats Charles Kennedy and Menzies Campbell.