Many of the people whose ancestors lived in the U.S. thousands of years before Europeans are carrying tribal identification for protection against the Trump administration’s anti-immigration agenda.

The president of the Oglala Sioux Tribe in South Dakota said three of the four tribal members detained by ICE agents in Minneapolis last week have been transferred to an ICE facility and called for their immediate release.

The Prairie Band Potawatomi Nation that was uprooted from the Great Lakes region in the 1830s is facing widespread outrage over plans to profit from another forced removal.