MINNEAPOLIS, MN- FEBRUARY 29: Winona LaDuke, an American Indian Activist and former Green Party vice presidential candidate, speaks to a crowd of Democratic presidential candidate Sen. Bernie Sanders (D-VT) supporters at the Minneapolis Convention Center February 29, 2016 in Minneapolis, Minnesota. Sanders, who has spent the last four days campaigning in Minnesota, is hoping to win the State in the Super Tuesday primary election on March 1st, 2016. (Photo by Stephen Maturen/Getty Images)
