Gregory Campbell, Democratic Unionist MP for East Londonderry since 2001 and Northern Ireland's longest serving current member, is a politician whose entire career has been organised around a refusal to concede ground, symbolic or territorial, to Irish nationalism. He even insists on the name: to Campbell the city of his birth is Londonderry, never Derry.

Born in the Waterside area of that city in 1953 and educated at its technical college and the University of Ulster, he describes himself plainly as a loyalist. He joined the DUP in the 1970s and has now belonged to it for more than fifty years. His combativeness was there from the start. Elected to the city council for the Waterside in 1981, he served thirty years, and in 1984 led unionist councillors out of the chamber in protest when it renamed itself from Londonderry to Derry City Council. He contested Foyle three times, in 1983, 1987 and 1992, against John Hume, losing each time, a long apprenticeship against one of the towering figures of Irish nationalism. In 1985 he was a central figure in the BBC Real Lives documentary At the Edge of the Union, banned on the direct intervention of Home Secretary Leon Brittan and triggering a one day strike by journalists in defence of the corporation's independence, one of the defining censorship episodes of modern British broadcasting.

The elected record is substantial. He sat in the Assembly in the 1980s and again from 1998 to 2016, topping the East Londonderry poll in 1998, 2003, 2007 and 2011, and held two Stormont portfolios, Regional Development briefly in 2000 and Culture, Arts and Leisure from 2008 to 2009. He took East Londonderry at Westminster in 2001 by unseating the UUP veteran William Ross, and has held it ever since.

What he is best known for, though, is provocation. In 2014 he opened an Assembly question by mocking the Irish for thanking the Speaker, with the line "curry my yoghurt can coca coalyer", and was barred from the chamber for a day after refusing to apologise. At his party conference that month he said the DUP would "never agree to an Irish Language Act" and would treat nationalist demands as "no more than toilet paper". He repeated the yoghurt joke on Facebook in 2020, drawing a standards complaint. In 2021 he called a Songs of Praise episode featuring only Black participants "the BBC at its BLM worst", and campaigners against racism called for an apology. In 2019 he voted against LGBT inclusive relationships education in English schools. None of this is incidental to his politics. It is his politics, conducted as deliberate refusal.

The ground beneath him, however, is shifting. In 2024 he held East Londonderry by just 179 votes, 0.5 per cent, over Sinn Féin's Kathleen McGurk, the narrowest majority of any DUP MP, on a seat unionism once owned outright. At 73, after more than four decades in office, longevity no longer secures him. The question his career now poses is whether the DUP's longest serving MP holds on once more, or becomes the most visible casualty of the demographic and political change he has spent fifty years resisting.