Question: The Portillo moment was the dramatic declaration of the result for the Enfield Southgate constituency in the 1997 UK general election, which British Labour and Co-operative Party politician, defeated the sitting MP?
Sentence (from "Portillo moment"): 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.
Relevant evidence: No