All the elements are there.

He has an order directing his administration to facilitate Abrego’s return. He has an administration who has been openly defiant but up until now could claim that they cannot return him even if they tried. Now Trump openly admits he could do so. All that’s left is for Roberts to either assert the power of the court to hold Trump’s officials or he himself in contempt, but as of today, we have an undeniable open and notorious refusal to follow a Supreme Court order.

But knowing how spineless Roberts is, he probably is waiting for a new lower-court motion to compel adherence to the order to work its way to the Supreme Court.