What?! You've got all the pieces of the puzzle, just not put them all in the right place!
Yes, the three years relates to National - it's saying National (and their policies) are driven by the three-yearly election cycle.
The 10 years, is referencing Labour takes a longer-term planning outlook; as others have pointed out, 10 years is a common timeframe for planning - eg the requirement for NZ councils to have a long-term plan that covers a period no less than 10 years.
Whether or not that's an accurate characterisation is a more relevant point than simply trying to score points on the "maths" (over which you've essentially scored an own goal...).
Have to agree. I think that slogan is particularly effective and powerful. The chosen numbers are deliberate. National focuses on keeping things ticking over for one electoral cycle, never looking beyond the next election. Labour thinks to the future, regardless of who's in government at that point - e.g. climate change.
Whether or not you agree that that's an accurate summary of each party in reality is another thing, but the advertising is sound.
I also feel that yesterday was the tipping point in the campaign and will put my money down now that Labour will win. National's drop in support isn't just continuing, it's accelerating. All the talk now is about what kind of government Labour can form. Short of a bombshell (a real one, not a Steven Joyce special) I don't think there's anything that an incumbent third term government can do to arrest that momentum.
Pretty astonishing stuff. The day Jacinda became leader I predicted she'd lead them to 33% in a losing effort, which I thought would be an incredible accomplishment.