Short was responsible for the outlawing of pirate radio stations such as Radio Caroline. Following the government campaign against the pirates previously led by Tony Benn, his predecessor in the post of Postmaster-General, Short was responsible for introducing the bill which became the Marine etc. Broadcasting and Offences Act in 1967. In a 1982 interview for BBC Radio's The Story of Pop Radio, Short admitted having enjoyed listening to some of those stations, particularly Radio 390. As Postmaster General, Short ordered the creation of the 1966 England Winners stamp to celebrate England's victory in the 1966 World Cup.
He subsequently served as Education Secretary 1968–70, and became Labour's deputy leader on 25 April 1972 after Roy Jenkins resigned over differences on European policy. Short was seen at the time as a "safe pair of hands". His main rival for the job was the left-winger Michael Foot who was viewed by many on the centre and right of the party as a divisive figure. Short defeated Foot and Anthony Crosland in the same vote.
Short's new seniority was reflected in his appointment as Lord President of the Council – though not Deputy Prime Minister – 1974–76, but he did not have the stature to mount a leadership bid himself on Wilson's retirement. He was not offered a Cabinet post on James Callaghan's election as Premier. His resignation letter said that the time had come for him to step aside for a younger man; this was sarcasm, as he was replaced by Michael Foot, who was only seven months younger than himself. Short was also nine months younger than Callaghan, who had dropped him from the cabinet.
Peerage
He was made a life peer as Baron Glenamara, of Glenridding in the County of Cumbria on 28 January 1977, a few months after he had left the Commons. One year before, he was appointed Chairman of Cable and Wireless Ltd, which was at the time a nationalised industry. He served in that post until 1980. As a life peer he was a member of the House of Lords, although he stopped attending regularly a few years before his death. His name lives on in the House of Commons with the term "Short Money". This refers to funds paid by the Government to help run the Parliamentary office of the Leader of the Opposition. The then Mr Short pioneered this idea during his time in the House. He was made a Freeman of the City of Newcastle in 2001 "in recognition of his eminent and outstanding public service" and served as Chancellor of the University of Northumbria, a post he retired from in 2005.