New Zealand First leader and the new MP for Northland Winston Peters has doubled his popularity, according to the latest Herald DigiPoll survey.
Mr Peters, who recently turned 70, is preferred Prime Minister by 12 per cent of voters compared with last December, when he was preferred by just 5.9 per cent.
He is now breathing down the neck of Labour leader Andrew Little, who on 13.9 per cent has barely moved since December, although both are well behind Prime Minister John Key.
Mr Little became Labour leader in November after the party entered its third term in Opposition.