Graham served as Secretary of State under Prime Minister Jean Chretien, and was later appointed Secretary of National Defense under Prime Minister Paul Martin.
He also served as Leader of the Opposition and Interim Leader of the Liberal Party.
In a tweet, Transport Minister Omar Algabra called Graham “my friend and mentor”.
“He was a giant in Canadian and international politics,” Alghabra said.
“He wore his love for Canada on his sleeve. My condolences to his family.”
I am saddened to hear of the passing of my friend and mentor Bill Graham. He was a giant in Canadian and international politics. He wore his love of Canada on his sleeve. My condolences to his family.
—@OmarAlghabra
More to come…