Presidential candidate Sen. Elizabeth Warren, D-Mass., apologized to a gathering of Native Americans and tribal leaders during a forum in Sioux City, Iowa, Monday.
During her talk, Warren called for permits for the Dakota Access Pipeline and Keystone XL Pipeline to be revoked.
The Democratic presidential candidate addressed other issues including topics like tribal sovereignty and missing indigenous women.
Warren tweeted, "Energy projects that impact Indian Country won't proceed without consent" if she's elected president.
North Dakota Republican Sen. Kevin Cramer released a statement saying: "The senator was wrong and siding with special, out-of-state protesters who terrorized law enforcement while the federal government did nothing. These legally-permitted pipelines are critical pieces of energy infrastructure that protect both our national security and our economic security."
Warren received applause after pledging that she would uplift Native people as president.