China is exporting more than A.I. models. It wants its data to influence the world’s chatbots, raising fears that Beijing’s narratives will spread with the technology.

President Trump wants to curtail military exercises with South Korea, saying they were hostile to North Korea. But under Mr. Kim, the North has become increasingly belligerent toward the South.

Her mother put her on TV at 11 months old. She lost custody of her own daughter. The “Nashville” star has a lot to reckon with in her new memoir.

We explain the climate phenomenon.

President Trump appointed his former personal lawyer Will Scharf as White House counsel. Maggie Haberman, our White House correspondent, explains how Scharf might help the president avoid congressional oversight at a critical time.

Plus, Hayden Panettiere dies at 36.

Ayatollah Mojtaba Khamenei’s appointment of hard-line loyalists to top jobs suggests he is prepared to keep the country on a war footing and to quash domestic dissent.

Three primaries for the House and the Senate on Tuesday pose a fresh test for the left, this time in a conservative-leaning state where socialism is often seen as a dirty word.

The New York Times is examining how public health is changing in the state, from the whooping cough outbreak to vaccine policies, and we want to hear from you.

Policymakers around the country are maneuvering to ensure that tech giants aren’t the only ones who stand to benefit.