Prime Minister Helen Clark is indicating she will allow all three inquiries into Winston Peters and New Zealand First run their course before making any decision on his ministerial future.
Mr Peters stood down from his portfolios, including that of Foreign Affairs Minister, in August.
Donations to his party and his legal bills are being investigated by the Serious Fraud Office, police and Parliament's privileges committee.
Miss Clark told Nine to Noon on Wednesday that Mr Peters' future is clearly on the line in the court of public opinion.
She says there may be short-term electoral attractiveness to sacking him, but she has been determined to be fair and let processes run.
Miss Clark says she does not believe her Labour Party has been damaged by the New Zealand First donations row.