The National Government won a massive election victory in the 1931 general election but was internally divided on the question of protective tariffs. So as to balance the Cabinet Cunliffe-Lister was replaced at the Board of Trade by the supposed Free Trader Walter Runciman, and instead became Secretary of State for the Colonies, which he would hold until June 1935. When MacDonald retired as Prime Minister and was succeeded by Stanley Baldwin a Cabinet reshuffle took place in which Cunliffe-Lister became Secretary of State for Air. At the 1935 general election he did not contest his seat and was instead ennobled as Viscount Swinton, retaining his ministerial office for the next three years into the premiership of Neville Chamberlain he took the strategic post of Secretary of State for Air responsible for Britain air defences in the lead up to war.