Labour is leading National by four points in tonight's 1News Colmar Brunton poll, with Labour up 1 point to 44 per cent and National also up one to 40 per cent.
The gap between the two big parties has stayed the same as last week's Colmar Brunton poll.
The biggest movement has been in support for the smaller parties, with New Zealand First down three points to 6 per cent and the Greens up two points to 7 per cent.
The results are markedly different from Newshub's Reid Research poll on Tuesday this week, which had National ahead on 47.3 per cent (up four points in ) and Labour on 37.8 per cent (down 1.6) and the Greens out of Parliament altogether. New Zealand First was on 6 per cent.
But few believed that National had taken such a big lead and most party insiders thought the contest was much closer.