"Portillo moment" has become a metaphor for an indication of a sudden and significant change in political fortunes, particularly the unseating of a leading MP (especially a cabinet minister) at a general election.
The Labour Party candidate, Stephen Twigg – 30 years old, openly gay and relatively unknown – was considered unlikely to be able to overturn Portillo's substantial majority.
Coming into the 1997 general election, Labour had held a substantial lead in the national polls for a considerable time, but Portillo's seat was still considered safe.
Portillo dismissed the national exit poll but struggled to answer Paxman's question, "Are we seeing the end of the Conservative Party as a credible force in British politics?
Portillo remarked in later interviews that he had regarded his defeat as a blessing, since it eliminated him from the expected Tory leadership contest to replace John Major, and that he had no desire to lead a rump party, which would probably be in opposition for at least two more parliamentary cycles.
After losing Enfield Southgate in 1997 Portillo returned to the House of Commons in 1999, winning the by-election for Kensington and Chelsea following the death of Alan Clark.
Earlier that night, David Mellor had lost his seat at Putney, and was seen in a televised argument with the Referendum Party leader, Sir James Goldsmith.
", a question echoed in the title of a book published by Brian Cathcart in October 1997, which recounts the story of the election night from the point when polls closed at 10pm on 1 May 1997, entitled "Were You Still Up for Portillo?
[7] A Channel 4 list, compiled in 1999, put the Portillo moment third, behind the Apollo 11 Moon landing and the release of Nelson Mandela, and one place ahead of the death of Diana, Princess of Wales.
The following were described as Portillo moments:[10] The 2024 general election was the first time since 1997 that Labour ousted a Conservative government, and was a landslide victory of a similar margin.