Poll: Flag flop fails to dent Government's popularity

The popularity of John Key's government is showing no sign of waning, with support for National climbing in the latest ONE News Colmar Brunton poll.

However it's a very different story for Labour, with the party and its leader Andrew Little taking a big hit this month.

Despite the result of last month's flag referendum, National's popularity has grown - and Labour's has dropped. Source: 1 NEWS

National has climbed three points to 50 percent - a level it hasn't been at since August 2014 - while Labour is down a whopping four points to 28 percent.

Crucially, this is the first time Labour has slipped below 30 percent since the election.

After a dip last month the Greens have crept back up to 10 percent, just pipping New Zealand First who slipped back one to nine percent.

The Maori Party and Act are both steady on one percent.

When converted into seats in Parliament, it's a clear cut win for National who get 61 seats and the ability to govern alone in a Parliament of 121.

Labour would have 34, and even with the Greens 12 seats could only muster 46 as a left wing block.

NZ First would have 11 seats while Act, United Future and the Maori Party all would have one.

The poll must be a huge relief for the Prime Minister with no apparent voter backlash from his failed $26 million flag change campaign, the holiday pay botch-ups and tax haven trust issues.

But there are plenty of challenges for Mr Little who after more than a year in the job is now going backwards.

While John Key has slipped one point in the preferred Prime Minister poll to 39 percent support, Winston Peters is a clear second on 10 percent while Mr Little languishes on seven percent.