Maori Affairs Minister Parekura Horomia says the Maori Party is trying to make political capital out of the terror raids and blockade of Ruatoki by calling for his resignation.
A closing statement from the Maori Party's annual conference called for Mr Horomia to resign, saying he had "abandoned
his people in their time of need".
But Mr Horomia said the Maori Party was using the raids for political advantage.
"I have no intention of resigning, and trying to get votes out of it is a lot of nonsense. I have been consistent about it being a police matter and I, like everybody else, want to see the information."
The Maori Party has opposed the manner of the raids, saying they violated the community of Ruatoki and left the Tuhoe people traumatised.
But Labour's Maori MPs have been quiet on the issue, saying it was a police matter in which the Government could not interfere, and they would wait to see what evidence the police produced.
The war of words over the raids on October 15 is part of the wider battle between Labour's Maori MPs and the Maori Party which will intensify as election year looms.
The Maori Party aims to take all seven Maori electorates next year, which will mean ousting three of Labour's Maori MPs - including Mr Horomia.
The conference was held on Omahu Marae near Hastings - in Mr Horomia's electorate.
At the conference, Dr Sharples lambasted Labour's Maori MPs, calling them sell-outs for opposing Maori Party initiatives on issues such as education, and voting down an inquiry into treaty claims despite United Nations criticism of the process.
He said Labour's MPs were tied by the party line, meaning they were Labour first and then Maori.
"Then what are they doing there? They get on there on the Maori push. There are Maori in there in the Maori seats who are Labour first. If there is going to be any change for the good of our people, we are going to do it."
Mr Horomia dismissed Dr Sharples' comments as bluster.
The Maori Party also faces debate on whether it should retain its ability to speak independently by staying outside of future governments.
MP Te Ururoa Flavell was the only MP to state his preference - saying the party would get more clout to have Maori interests advanced through law changes.
