NZ First leader Winston Peters says Judith Collins should go unless "she finds God".
Speaking to TVNZ's Q+A programme this morning, Mr Peters says the damage from the Whaleoil saga is irreparable for Ms Collins and it's time she resigned.
"She should have been gone with the Oravida scandal," he says.
Mr Peters says the Dirty Politics revelations show a new low for politics and he believes it's highjacking the campaign and making it disappointing.
The NZ First leader says it's not only time for Ms Collins to go but for New Zealand's immigration policy to change.
He told the Q+A New Zealand should only allow immigrants into the country who are needed to fill the skill gaps in the job market.
" We should bring in people that we need, not people who need us."
Mr Peters says New Zealand's immigration policy is chaotic and unfocused and a debate is needed on the issue.