Stephen Miller’s Stock Sale Raises Questions, Ethics Experts Say

Mr. Miller, one of President Trump’s top advisers, sold shares in the mining company MP Materials following a lucrative deal between the company and the government.Stephen Miller, one of the president’s top advisers, sold shares of a mining company after it had begun negotiations with the government

A Ana Swanson

Trump’s Nvidia Chip Deal Reverses Decades of Technology Restrictions

President Trump’s decision to allow Nvidia to sell its chips to China has raised questions about whether he is prioritizing short-term economic gain over long-term American security interests.President Trump with Jensen Huang, the chief executive of Nvidia, at the White House in April.

D David E. Sanger

Why the A.I. Boom Is Unlike the Dot-Com Boom

Silicon Valley is again betting everything on a new technology. But the mania is not a reboot of the late-1990s frenzy.Ben Horowitz, a major A.I. venture capitalist, in 2019. “The clearest sign that we are not actually in a bubble is the fact that everyone is talking about a bubble,” he said.

D David Streitfeld

Ukraine Could Be ‘Ready for Elections,’ Zelensky Says

The Ukrainian president told reporters that a vote could be held in 60 to 90 days if the country received security protections from the United States.President Volodymyr Zelensky of Ukraine speaking at the White House in Washington, D.C., in October.

C Claire Moses

In L.A., $750 a Month to Live in a Backyard Storage Unit

A landlord crowded tenants into his house and yard without running water or power. One, determined to find an alternative, was up against the city’s housing crisis.“I’m just kind of done living like this,” Junior Estrada said.

L Livia Albeck-Ripka

What Streaming TV Could Learn from ‘Mad Men’

The classic show arrived on HBO Max with an embarrassing remastering error. But the show’s creative mastery remains undeniable.Jon Hamm in “Mad Men,” now streaming on HBO Max.

J James Poniewozik

Europe, Too, Is Worth Fighting For

Provided Europeans want to fight for it.European Union leaders with Volodymyr Zelensky of Ukraine and President Trump at the White House in August.

B Bret Stephens

Trump Pressures Ukraine

Also, the Supreme Court considers campaign finance limits. Here’s the latest at the end of Tuesday.President Trump with President Volodymyr Zelensky of Ukraine and other European leaders at the White House in August.

M Matthew Cullen

Student Is Killed in Kentucky State University Shooting

A suspect who is not a student was arrested after the shooting in Frankfort, Ky., the police said. The university said that a second student was critically injured.The Kentucky State University campus in Frankfort, Ky., where the police responded to a shooting on Tuesday afternoon.

M Michael Levenson, Rylee Kirk and Corinne Boyer