British politics has never been short of defectors. It has, however, been rather less well supplied with defectors whose principles survived the journey. Christopher Brocklebank-Fowler was one of the exceptions. A Conservative MP who crossed the floor to join the SDP, subsequently embraced the Liberal Democrats and eventually found his way into Tony Blair’s Labour Party, he was a political traveller of unusual range.

As the One Nation Liberals prepare to publish our founding pamphlet, Beyond the Right, his career challenges the increasingly tedious assumption that One Nation politics is the proprietary invention of the Conservative Party. Born in Banbury on 13 January 1934, Brocklebank-Fowler was educated at the Perse School in Cambridge before serving as a submarine officer in the Royal Navy. He subsequently farmed in East Anglia before moving to Kenya in 1955. There, amid the Mau Mau uprising and the closing chapters of British colonial rule, he acquired an interest in international development and the right of nations to determine their own futures.

He was elected MP for King’s Lynn in 1970 and represented North West Norfolk from 1974 to 1983. To understand his politics, one must look to Harold Macmillan’s The Middle Way. First published in 1938 and reissued in 1966, the book sought an accommodation between the excesses of laissez-faire capitalism and the deadening embrace of state socialism. Brocklebank-Fowler reviewed the reissued edition, and returned to his assessment during his celebrated defection speech in the Commons on 16 March 1981. He recalled his own words: “It was born of a horror that mismanagement of the domestic economy could once again lead to massive unemployment and social disintegration.” 

His international outlook provided another revealing illustration of the same instinct. Brocklebank-Fowler was prepared to challenge his own party over apartheid South Africa, opposing the resumption of arms sales and pressing the University of East Anglia to sever its financial links with the country. He supported international development and voluntary organisations including Christian Aid and Oxfam. For him, the plight of poorer nations was not an agreeable subject for the occasional conference speech or charitable appeal. It was a question of economics, justice and Britain’s long-term interests. The Middle Way, in other words, did not stop at the channel.

His defection speech on 16 March 1981 brought these convictions together. Announcing his intention to join the Council for Social Democracy, he declared:

“I propose to follow his radical example [Lord George Bentinck] in the pursuit of change and to seek to join the Council for Social Democracy in which I hope to help to form a new party and to develop a programme for stability, national unity and national renewal, which I judge to be vital if the country is to become truly one nation at home and is to play a leading part in international efforts to solve the problems of poverty, malnutrition and disease which afflict a wholly unacceptable proportion of mankind, on whose prosperity we depend so much for our future.”

Lord George Bentinck, the nineteenth-century Conservative reformer and former MP for King’s Lynn, was an ally of Benjamin Disraeli. Notably, Bentinck began as a Whig and joined the “Derby Dilly”, the group of dissident Whigs led by Lord Stanley who feared their party was appeasing its radical allies too far. Stanley set out the group’s outlook in what became known as the Knowsley Creed: “The machine must move forward for good or evil – for it cannot be stopped; like the fire it may purify, if properly kindled by a skilful hand, but if it should be impetuously and recklessly accelerated, destruction and overwhelming wreck must be the inevitable consequences.” Seen this way, Brocklebank-Fowler’s choice of hero makes sense. Bentinck moved from Whig to Tory because he feared his party was drifting from the centre; Brocklebank-Fowler moved from Tory to Social Democrat for much the same reason. 

The subsequent course of his political career offers three lessons for One Nation Liberalism.

First, One Nation politics does not belong to the Conservative Party. Its intellectual foundations can be found in liberalism and social democracy. Secondly, economic moderation means judging policy by its impact on jobs and living standards, not simply GDP figures and spreadsheet politics. Finally, One Nation cannot end at Dover. Brocklebank-Fowler understood that international development was not a distraction from Britain’s national interests but an essential part of their protection. He made the case in the very speech in which he left the Conservatives, claiming that £997 million of aid had produced a £2,100 million trading surplus with the Third World. His conclusion was blunt: “aid is a form of national investment.”

The One Nation tradition is not a party badge. It is a governing philosophy. The Conservative Party may claim its lineage, but it cannot arrogate to itself the exclusive guardianship of its patrimony.

* Cody Butler joined the Liberal Democrats from the Conservative Party in 2026.