Kagan, Sotomayor Trade Rare Barbs in Warhol High Court Case

US Supreme Court Justices Sonia Sotomayor and Elena Kagan, who are typically on the same side in opinions as fellow liberals, found themselves notably at odds in a case involving a picture of the musician Prince.

Sotomayor wrote a majority 7-2 opinion Thursday ruling against Andy Warhol’s foundation in a dispute over the copyrights of a photograph he used to make a silkscreen portrait of the musician while Kagan penned the dissent.

Both took shots at the other, which isn’t unusual when justices disagree on the outcome of a case. It is more surprising among two allies on the court’s ...