An ardent left-winger, Jenkins was active in the Prudential Staff Association, the
National Union of Bank Employees and the actors' union
Equity, of which he was assistant general secretary 1957–64. He and his wife, Marie, became active in the politics of his local community in the
County Borough of Croydon,
Surrey. Jenkins chaired his local
Upper Norwood Labour Party and stood for the council, and Marie was elected to Croydon Council for
Whitehorse Manor ward in 1949. He stood for Parliament without success in
Enfield West in
1950 and
Mitcham in
1955. Jenkins was involved in the
Victory for Socialism group opposed to the 1956
Suez War and had been a supporter of CND and nuclear disarmament since its foundation in 1957. In 1958 he became a
London County Councillor for
Stoke Newington and Hackney North, serving until 1965, and he served on the London Labour Party executive in 1962. He was also involved with the
Arts Council. He attended every day at the House of Lords when it was in session and he was in good health. Jenkins was highly active in the House of Lords. So skilfully did he exploit the informal procedures of the Upper House that a limit had to be imposed on the number of questions a peer could ask each day. He circumvented the government's ban on the publication of
Spycatcher by reading lengthy extracts from it to ensure it was on public record in
Hansard. Jenkins continued to write pamphlets and radio plays, serving on the board of the
Royal National Theatre. His later plays were typed on an early
Amstrad 256. He said he became 'computerised' late in life. His parliamentary correspondence and speeches continued to be typed on the same Amstrad 256 until he entered a care home at the end of his life in 2004. ==CND==