Darling was initially appointed as Chief Secretary to the Treasury in 1997, moving to become Secretary of State for Work and Pensions in 1998. Spending four years at the department, he spent another four years as Secretary of State for Transport, also becoming Secretary of State for Scotland in 2003. Prime Minister Tony Blair moved Darling for a final time, to Secretary of State for Trade and Industry in 2006, before Gordon Brown promoted Darling to Chancellor in 2007.