Veterans of Labour’s 1997 victory party at the Royal Festival Hall – by the end, the dancefloor looked like a war zone strewn with dozing bodies – will remember the sense of disbelief and excitement as the scale of the landslide started to materialise.
David Hill, the less self-publicity-prone of the hugely effective Labour press team, gave out a deep-throated “what?!” as he reeled away in disbelief at the sight of a startled Stephen Twigg defeating Michael Portillo in Enfield Southgate. That night, unexpected seat after unexpected seat fell into Labour hands.