National's fallen back from its 50 percent support in the latest Roy Morgan opinion poll, but remains well out in front of other political parties.
The party's fallen four and a half points to 49 and a half percent support in the latest survey.
That gives it a 23 and a half point lead over Labour which has risen half a point to 26 percent.
The Greens have gained two and a half to 13 percent, New Zealand First's on six and a half percent.
The Maori Party, ACT, and United Future are all on one percent or lower
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