10 PM ET: Primary elections, Supreme Court protections, deportation flight & more

We begin with key races in five states holding elections. Plus, we’ll break down a potential sticking point in a bipartisan gun reform package. President Joe Biden is expected to sign a bill that provides additional security to US Supreme Court justices’ immediate family members. Moderna’s vaccine for children six to 17 clears a hurdle in its authorization process. Lastly, we’ll tell you how a controversial flight to deport asylum seekers became grounded. To learn more about how CNN protects listener privacy, visit cnn.com/privacy