Six months out from the election a new poll has revealed Prime Minister Bill English is struggling to achieve the same popularity as his predecessor.
The Newshub-Reid Research poll released on Tuesday found English was on 25 percent as preferred Prime Minister.
By comparison, in August last year John Key achieved his worst poll result of 36.7 percent, after consistently achieving figures above 40 percent.
The poll has a margin of error of 3.1 percent.
A thousand people were polled, including online respondents for the first time.
A quarter of respondents took part online, while the remainder received the traditional phone call.
Further results, to be released later on Tuesday, are expected to compare the popularity of English and Labour leader Andrew Little.