National has 30% of decided voters (3% down on its 2008 share of all registered voters).
Labour has 22% (3% down on its 2008 share of all registered voters).
ACT has 2% (down from 2.7% in 2008) but only 40% of its 2008 voters remain loyal. Some 28% of ACT voters have switched to National while 19% say they don’t know who they would give their party vote to if a general election were held tomorrow.
Unfortunately the period over which the survey was conducted is not specified.