Few senators as of yet are fully endorsing ideas like mandatory retirement for the justices or expanding the number of seats on the nine-person court. But a growing faction, long hesitant to embrace structural changes, say they are now prepared to consider such moves.

That sentiment is growing among Democratic senators, according to interviews with more than a third of the 50-member caucus Thursday, even as President Biden has shown little indication that his resistance to overhauling the Supreme Court has softened…

Wednesday’s oral arguments, in a case involving a Mississippi law that would bar most abortions after 15 weeks, changed those sentiments, he said. “It is hard to watch that — and I did watch a fair amount of it — and not conclude that the court has become a partisan institution,” Schatz said. “And so the question becomes, well, what do we do about it? I’m not sure. But I don’t think the answer is nothing.”

Sen. Elizabeth Warren (D-Mass.) made a similar point. “What happened yesterday forces all of us to rethink our views about the makeup of the court,” she said. Referring to justices who appeared prepared to overturn precedent and scale back abortion rights, Warren added, “They‘ve undermined confidence in the court and force us in Congress to rethink how to build a court that the American people can trust.”