Tribal leaders have backed the IWCA as a means of preserving their cultures.(AP Photo/Mariam Zuhaib, File) The Supreme Court issued a decision Thursday preserving the Indian Child Welfare Act. The law aims to keep Native American kids in tribal families in foster care and adoption cases. This was the third time the Supreme Court has taken up a case on the IWCA. WASHINGTON (AP) — The Supreme Court on Thursday preserved the system that gives preference to Native American families in foster care and adoption proceedings of Native children, rejecting a broad attack from some Republican-led states and white families who argued it is based on race.The court left in place the 1978 Indian Child Welfare Act, which was enacted to address concerns that Native children were being separated from their families and, too frequently, placed in non-Native homes.Tribal leaders have backed the law as a means of preserving their families, traditions and cultures.The "issues are complicated" Justice Amy Coney Barrett wrote for a seven-justice majority that included the court's three liberals and four of its six conservatives, but the "bottom line is that we reject all of petitioners' challenges to the statute."Justices Clarence Thomas and Samuel Alito dissented, with Alito writing that the decision "disserves the rights and interests of these children."The leaders of tribes involved in the case called the outcome a major victory for tribes and Native children."We hope this decision will lay to rest the political attacks aimed at diminishing tribal sovereignty and creating instability throughout Indian law that have persisted for too long," said a joint statement from Cherokee Nation Principal Chief Chuck Hoskin, Jr., Morongo Band of Mission Indians Chairman Charles Martin, Oneida Nation Chairman Tehassi Hill and Quinault Indian Nation President Guy Capoeman.President Joe Biden, whose administration defended the law at the high court, noted that he supported the law 45 years ago when was a Democratic senator from Delaware."Our Nation's painful history looms large over today's decision.