Labour campaign spokesperson Grant Robertson has accused Prime Minister John Key of "ducking the tough questions" by refusing to debate Labour's Phil Goff.
In a promo for this weekend's episode of The Nation, TV3 said Mr Key refused to appear on the show. When reporter Narelle Suisted followed the Key campaign she found its "endless photo opportunities are carefully planned stage shows".
Mr Robertson said the latest no-show was one of many from the National leader.
"He has refused to go head-to-head in a live debate with Labour Leader Phil Goff for the Herald; with Morning Report because he was 'too busy to prepare'; with Close Up twice; and Radio Live.
"He continues to give Campbell Live the cold shoulder and Radio New Zealand confirmed last month it had only been able to get him on its programmes a handful of times in the past year.