Daniel Grian ` Danny ' Alexander ( born May 15 , 1972 ) is a British politician who is the Chief Secretary to the Treasury in the Conservative-Liberal Democrat coalition government . He is the Liberal Democrat Member of Parliament for Inverness , Nairn , Badenoch and Strathspey . Daniel Grian Alexander ( born 15 May 1972 ) is a British politician and the Liberal Democrat Member of Parliament for Inverness , Nairn , Badenoch and Strathspey .