North Dakota Democrat Heidi Heitkamp's failure to fight the Dakota Access pipeline shook her support among the Standing Rock Sioux tribe, which helped her win her first term by a narrow margin.
Indigenous activists rally on behalf of the Standing Rock Sioux and Cheyenne River Sioux tribes during a hearing in the tribes' case against the U.S. Army Corps of Engineers.
The lake, which flows into the Missouri River, serves as the primary water source for numerous indigenous tribes, including the Standing Rock Sioux and the Cheyenne River Sioux.
As with the Standing Rock Sioux, the South Dakota tribe's land and water supply are threatened by the controversial oil pipeline.
As the Sioux tribes run out of legal routes to halt the pipeline, military veterans travel to North Dakota to support the water protectors' final stand.
The fight over the Dakota Access pipeline is reaching a boiling point as peaceful demonstrators seek to halt imminent drilling.
At Saturday's Inaugurate the Resistance event in Washington, D.C., the 2016 presidential candidate, the American Indian activist and the law professor discussed nonviolent action and the importance of grass-roots movements.
Follow along as Truthdig provides live updates from the demonstrations taking place at and near the Standing Rock Indian Reservation in North Dakota and across the country.
The authors were witnesses as the people prevailed over the oil industry and news that the final Dakota Access pipeline permit had been denied spread around Oceti Sakowin Camp.