Davidson said their preferred government would consist of Labour, the Greens and the Maori Party, which was her idea of a "truly progressive" government.
She said the Greens had worked with "Uncle Winston" in the past, but "we won't put up with some of his attitudes ... that pull on that populist racism stuff that we need to be actually resisting".
Jackson said working with the Maori Party was something they would consider, but they were not his "dream sort of view".
"Under the Maori party things have never been worse for Maori," he told Patrick Gower.
Davidson said people wanted to be clear what they were voting for, and a vote for the Maori Party was "a vote of chance".
Maori Party co-leader Te Ururoa Flavell said whether his party goes into government with National or Labour after the election depends on who gives them an invitation, and what their supporters have to say.
He would struggle to work with Peters, but can't rule it out because "it's a decision for our people", he said.