If I remember 'Were you still up for Portillo?' right, Mellor had actually provoked the jeering by making some snide comment likening the minor candidates to zoo animals.
The confusion in this thread seems to have been caused by ambiguity about which candidates David (and/or Mellor) was referring to. Is there a direct quote of the exact wording he used? Or a link? Apart from his reference to Goldsmith's "attempt to buy the political process ", I don't remember a reference to other minor parties or candidates.
Labour governments are always voted in by empty minds, and voted out by empty pockets