He's worried about donors being "depicted as lepers" amid donation allegations.
The 39-year-old is eager to get traction on Māori issues.
After the party fell short of the legal limit, he allegedly broke the Electoral Act.
The Prime Minister says she's awaiting the outcome of the investigation.
She's accusing him of dirty politics and saying he should be sacked.
Ricardo Menendez March will stand in Auckland's Maungakiekie electorate.
"I want to end this charade we've been in."
But the Deputy Prime Minister will likely stay in his role for the moment, writes Duncan Garner.
"It will dog this Government throughout this year."