A major news day for the Supreme Court, mostly bad for conservatives who wanted bigger wins, and a rare public blunder from a top legal reporter.

• Veteran NPR reporter Nina Totenberg wrongly reported that Justice Alito was retiring, then pulled the story and publicly apologized for the worst mistake of her 50-year career.
• The slip hints Alito may still be planning to step down, which would trigger a huge fight over his replacement.
• The court upheld birthright citizenship 5-4, with Trump appointee Amy Coney Barrett siding with the liberals, drawing furious calls from the right for her to resign.
• The court let states ban transgender girls from girls' sports but stopped short of forcing all states to do so, leaving blue-state rules intact.
• The court also loosened campaign finance limits, letting donors funnel far more money through party committees to specific candidates.

Outlook: Expect a bruising confirmation battle if Alito retires, plus a Trump push to end birthright citizenship through Congress that will likely land back at the court.