Duke Peltier was elected to serve five consecutive terms as the Ogimaa (Chief) of Wiikwemkoong Unceded Territory in 2012. He believes that protecting and implementing Treaty rights opens doors to economic advancements and building healthy relationships between First Nations and Canadians. He continues to use his expertise and knowledge to ensure that that voices of Anishinaabe people are heard and respected.

Duke Peltier provides his guidance on several boards, including 1534 Kanata Inc., the Indian Resource Council, and the Robinson Huron Treaty (RHT) Trust. As one the representative plaintiffs of the RHT, he was part of the team that successfully negotiated a past compensation agreement with the Crown in the amount of $10B shared amongst 40,000 beneficiaries and 21 First Nations.