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Results of a Colmar Brunton poll on TVNZ's Q + A programme this morning showed 42 per cent of those surveyed supported Ms Collins maintaining her ministerial portfolios. The same amount of people believed her resignation as a minister was in order, with the remaining amount unsure of what she should do.
Ms Collins took stress leave this week, following weeks of criticism over her links with dairy company Oravida.
Unanswered questions over a dinner between Ms Collins, Oravida bosses and an unnamed Chinese border control official late last year have fuelled the conflict-of-interest affair.
Today's Colmar Brunton poll also showed 50 per cent of people believed Ms Collins' behaviour had damaged the National party's level of public support. Forty-two per cent of those surveyed disagreed, and said her behaviour had not made any difference.
Overall, the poll indicated voters seemed to be focused on issues other than the National Party's ministerial woes. Three in four of those surveyed said Ms Collins' Oravida conflict-of-interest affair and the debacle resulting in Pakuranga MP Maurice Williamson's abrupt resignation from the party would not have much influence on their voting choice.
Ms Collins is due to return to Parliament for the Budget this week, before resuming her stress leave.
The Colmar Brunton poll had a margin of error of 4.4 per cent.