Moderna is seeking emergency use authorization from the US Food and Drug Administration for its Covid-19 vaccine for children 6 months through 5 years of age, the company said. Sanjay Gupta looks at how the clinical trials unfolded.
The Supreme Court has ruled that a map that created a second majority-minority district in Louisiana was an unconstitutional use of race, making it harder for voters of color to challenge redistricting plans that dilute the political power of minority communities.