"I want to be really clear with you that it's not enough to have political representation - political authority is vital if we are to open up the opportunities our people seek to make the difference we need.
"Being in an arrangement with Government provides us with immediate access to ministers. And importantly it has enabled us to throw open the doors of parliament to ensure our people are able to be at the table, telling their stories, being heard."
The Maori Party's relationship with the National Party lead to Hone Harawira quitting the Maori Party and setting up the Mana Party.
But the Maori Party has always defended its arrangement with National as the best way to make practical gains. It entered a confidence and supply arrangement with National in 2008 and in 2011.
"Our intentions have always been to negotiate the very strongest position for Maori within Parliament, and to make gains in every field," Mr Flavell told the party launch.
"We hope that the establishment of the Ainu Party will contribute along with other initiatives to ensure your culture, your livelihood, your values and traditions are being preserved, promoted and protected."