Less than two months from polling day National has stretched its lead over the centre left parties of Labour and the Greens.
National has climbed to 52% in the latest ONE News/Colmar Brunton poll while Labour is down one point to 28%.
Negative headlines over David Cunliffe's apology for being a man and his ski holiday has left the Labour leader forced to admit he could have done better.
Meanwhile, John Key returned from his Hawaii holiday with his own mess to deal with - mis-spending List MP Claudette Hauiti - but National seems immune to controversy, gaining another two points in the latest poll.
Labour on 28% is just above its 2011 election result and the Greens have also slipped, dropping two points to 10%.
New Zealand First is steady on 4% and Internet Mana is on 2% while the Conservatives are up one to 2%. Act stays on 1% and the Maori Party is down one to 1%.
When converted into seats in Parliament, National would easily govern alone with 66 seats. Labour would have 36, with the Greens mustering 13 and the Maori Party three. Internet Mana would bring in three MP, while Act and United Future would have one apiece.
With a presidential-style campaign looming, David Cunliffe is under huge pressure to connect with voters but his apology "for being a man right now" to a Women's Refuge symposium - even if it was taken out of context as claimed - hasn't helped his cause.
Mr Cunliffe has slipped two points to 8% this month while Mr Key has climbed one to 48% and Winston Peters sits on on 3%. But ONE News political editor Corin Dann says any talk of a panic change in leadership for Labour is off the table.
National is set to announce electorate deals with its support parties tomorrow and Dann says Conservative leader Colin Craig is not likely to get a deal in East Coast Bays, leaving the party the task of reaching the 5% threshold.
However, Dann says John Key is expected to give Act (Epsom) and Ohariu (United Future) some sort of accommodation in which National will stand in those seats but effectively not compete.
Tonight's poll of just over a 1000 eligible voters has a margin of error of plus or minus 3.1%.