KJ Muldoon became the first patient to undergo personalized CRISPR treatment, a therapy that found the one uniquely mutated gene out of 20,000 in his little body, and fixed it.
Supreme Court justices heard arguments in a case that could allow President Trump to move forward with his executive order ending birthright citizenship. But the case doesn't question whether or not the order is constitutional, it challenges the judicial power that's blocking it. Jessica Levinson explains.
Supreme Court hears arguments over the Trump administration’s challenge to birthright citizenship; Walmart to raise prices because of President Trump’s tariffs.