[1] Marks gained notoriety during a North American wide media tour to publicize WRIP's activities and by leading a class action lawsuit against President Gerald Ford.
Don worked with such notables as Hunter S. Thompson, Jane Fonda, Richard Dreyfuss, Bella Abzug and others to organize an amnesty for war resistors, He was a candidate for the Manitoba Liberal Party in the 1977 provincial election, and received 769 votes (15.63%) for a third-place finish in Point Douglas.
[19] He wrote a tribute piece for media mogul Izzy Asper in 2003, thanking him for his support in the First Nations Magazine and Indian Time series.
[21] In November of the same year, he organized an exhibition hockey game between aboriginal ex-NHL players and alumni of the Winnipeg Jets to raise funds for the White Buffalo Spiritual Society [22] Marks wrote a column and news features for Grassroots News - Manitoba's largest Aboriginal newspaper, and became Editor of this publication in January 2008.
Marks is developing the television variety program, Indian Time 4, and has founded TRUTH Video Productions, which produces documentaries about social and economic justice in First Nations communities.
"They Call Me Chief" is a Canadian best seller (over 5,000 copies) Marks wrote a regular column in the Winnipeg Free Press, Sou-wester and Grassroots News.
In 2012–13, he wrote and directed "Behind in the Count"; a documentary about the 1965 Canadian champion little league baseball team from CPAC in Winnipeg's north end.
He also wrote and directed a documentary on First Nations economic development with an emphasis on the rise and fall of the Tribal Councils Investment Group for the CBC.