The U.S. Supreme Court has affirmed the constitutionality of the Indian Child Welfare Act in
Haaland v. Brackeen. ICWA wins by a 7-2. The majority opinion was written by Justice Amy Coney Barrett. Justice Gorsuch wrote a concurring opinion. Justices Thomas and Alito dissented.
Here is a link to the PDF:
https://www.supremecourt.gov/opinions/22pdf/21-376_7l48.pdf