Two Very Differing Polls, and TV1's Possible Biasses

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When two polls taken within a week of each other come up with quite different results it's understandable that many people will question the value of polls, especially when the pollsters were wrong about the recent Australian election results.

Some said the difference was due to the (slightly) different poll dates when political interest was high due to National's budget leaks. Others said this would make no difference.