Following the 1951 election, Churchill made Maudling a junior Minister at the Ministry of Civil Aviation. However, his experience of preparing economic policy led to his speaking on behalf of the Treasury on the 1952 budget and thus to an appointment, later that year, as Economic Secretary to the Treasury. With his mentor Rab Butler as Chancellor of the Exchequer, Maudling worked to reduce taxes and controls in order to move from post-war austerity to affluence. When Anthony Eden took over as Prime Minister in 1955, Maudling was promoted to head a department as Minister of Supply. He supported the invasion of Suez.