National leader Christopher Luxon is expected to grill Prime Minister Jacinda Ardern over whether she has confidence in all her ministers.
It comes as questions remain over what led the Government to make a "mistake" in entrenching part of the Three Waters legislation and what Local Government Minister Nanaia Mahuta's role was in that. The entrenchment provision had to be overturned on Tuesday.
Broadcasting Minister Willie Jackson is also facing pressure after a contentious interview over the weekend, which he's admitted was not his best.
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