Mayor-elect Zohran Mamdani named Kamar Samuels as New York City’s schools chancellor. He starts on Thursday.

Chief Justice John G. Roberts Jr. in May. By tradition, he releases his report about the state of the nation’s courts on the last day of the year.

Justice Neil Gorsuch with former Justice Stephen Breyer at a memorial event for Antonin Scalia last year during a Federalist Society convention in Washington.

The new talks between Sam Altman and OpenAI’s board were the latest twist in a fast-moving drama at what is perhaps the world’s highest-profile artificial intelligence company.

The senior executives of OpenAI in March. From left, Mira Murati, now the company’s interim chief executive; Sam Altman, the ousted chief executive; Greg Brockman, OpenAI’s president who quit on Friday night; and Ilya Sutskever, a member of the company’s board.