The Supreme Court hears arguments today in three cases challenging President Donald Trump's effort to end birthright citizenship. Lower courts have blocked the president's order, which he signed on his first day back in office. However, the primary debate in court today will center on something else: the legality of nationwide injunctions, or when a lower-court judge single-handedly puts a government policy on pause nationwide. These rulings have been instrumental in blocking some of the president's most egregious policies. Washington State Democratic Attorney General Nick Brown, leading one of the cases in today's hearing, talks about what's at stake.

And in headlines: Health and Human Services Secretary Robert F. Kennedy told lawmakers, 'I don't think people should be taking advice, medical advice from me;' the CDC reported drug overdose deaths dropped significantly last year; and Omaha, Neb., elected its first Black mayor.

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