Democratic Sen. Kevin Killer, a member of the Oglala Sioux Tribe, stands after speaking to a group of Keystone XL pipeline opponents in Pierre, S.D., Wednesday, March 8, 2017. (AP Photo/James Nord)
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Democratic Sen. Kevin Killer, a member of the Oglala Sioux Tribe, stands after speaking to a group of Keystone XL pipeline opponents in Pierre, S.D., Wednesday, March 8, 2017. (AP Photo/James Nord)
