In 1993, he became the first member of Manitoba's Métis community to be appointed as the province's Lieutenant Governor, the 21st to hold that office.
He has participated as a representative of the MMF at Canadian First Ministers' conference, and has been actively involved in constitutional debates concerning First Nations and Métis peoples.
Governor of Manitoba coincided with a national reappraisal of Métis leader Louis Riel's role in the province's creation.
Once regarded as a rebel and an outlaw, Riel has in recent years been accepted as a Father of Confederation for his role in establishing a provisional government in the Red River Colony.
Governor is largely ceremonial, and Dumont had very little influence over the Progressive Conservative government of Gary Filmon.