New parties are displacing those that have occupied the far left and far right extremes of our political spectrum for 20 years.
On the left, Hone Harawira's Mana Party has displaced the Alliance, with 3 per cent support in the Herald street survey. The Alliance, which won 18 per cent of the vote in 1993, is still fielding a party list so it was listed on the card we showed voters, but nobody picked it.
On the right, Colin Craig's Conservative Party gets 1.5 per cent support in our survey. Act, which peaked at 7.1 per cent in the 2002 election, dwindled in our survey to three supporters, or 0.7 per cent.
In the centre New Zealand First, which peaked at 13.4 per cent in 1996 when leader Winston Peters became Deputy Prime Minister, dropped to 3 per cent in our 2008 pre-election survey and still at that mark.
Mana wins negligible support in mainstream phone polls - 0.1 per cent in last week's Herald-DigiPoll survey and 0.7 per cent in a Fairfax poll yesterday. But it shows up more strongly on the streets, reflecting its appeal to people who can't afford landlines.