The Portillo moment was the dramatic declaration of the result for the Enfield Southgate constituency in the 1997 UK general election, at around 3:10am on 2 May 1997. The Labour candidate Stephen Twigg, then relatively unknown, defeated the sitting MP, Conservative cabinet minister Michael Portillo. The result was perceived as a pivotal indication that the Conservatives would be voted out of office after 18 years, and that New Labour would win the election by a substantial majority.
The late-night declaration of the result became the subject of the question "Were you still up for Portillo?", asking whether a person had remained awake until after 3am to see or hear the key general election results. "Portillo moment" has become a metaphor for an indication of a sudden and significant change in political fortunes.
Michael Portillo was first elected to Parliament to represent Enfield Southgate at a by-election in 1984. The constituency includes largely suburban areas on the west of the London Borough of Enfield. Portillo retained the seat at the 1987 general election, and won with a comfortable majority of 15,563 in the 1992 general election.
By 1997, Portillo was Secretary of State for Defence in the Conservative government. He had developed a reputation as one a leading lights of the right wing of the Conservative Party, and he was considered a possible candidate to follow John Major as party leader after the 1997 general election. The Labour Party candidate, Stephen Twigg – 30 years old, openly gay, and relatively unknown – was unlikely to be able to overturn Portillo's substantial majority. They had previously met when Portillo addressed Twigg's school during the latter's schooldays.