Here is the opinion in United States v. Rainbow.

An excerpt:

Christopher Rainbow (Christopher) and Jordan Rainbow (Jordan) were found guilty of assault with a dangerous weapon and assault resulting in serious bodily injury, both in violation of 18 U.S.C. §§ 2, 113, and 1153. On appeal, they argue that the district court erred in admitting into evidence certifications of Indian blood and 1 in denying their requests to instruct the jury on lesser-included offenses. Jordan also argues that the district court erred in asking certain questions of a doctor who treated the victim and that the evidence isinsufficient to support his convictions. We affirm