I am confident that Mamdani has the courage, urgency and optimism New York City needs to lead it through the challenges of this moment.

Responses to a column by Thomas L. Friedman about cooperation between the U.S. and China on artificial intelligence. Also: A beautiful sight in Nashville.

The president of Brazil calls U.S. tariffs on his country “not only misguided but also illogical” and defends former President Jair Bolsonaro’s conviction.

No matter the direction of the tragedy, the end result is the same — the right grows angrier at the left, and the left grows angrier at the right.

What kind of central bank should we want for America?

Why did the working class switch sides?

We’ve fully stepped into a different historical moment: the age of brain-poisoning meme politics.

What happens to us when we use vulgarity all the time.

Oil extraction and organized crime plague my community in the forests of eastern Mexico, but we’re fighting back.

We can condemn his assassination without mythologizing him.

Social media is turning tragic events into snuff films.

His tragic shooting death tells us something about America’s culture of violence.

NYT Opinion invites readers to share video moments of their babies’ humor.

The A.I. company Anthropic illegally added my books to its data set.

The round table convenes to make sense of Kirk’s legacy and the future of discourse.

The Food and Drug Administration is taking action to rein in misleading ads.

Sampling the outpouring of responses to a column by David Brooks about the shortcomings of the liberal approach to the nation’s ills.

The round table convenes to make sense of Kirk’s legacy and the future of discourse.

We Don’t Want Echo Chambers

Readers discuss the damage to America’s parks. Also: Racial profiling in immigrant sweeps; the 9/11 memorial; phones in the classroom.

Even if it sounds unrealistic, Trump can do something important with the entire country frayed and on edge: push for calm and unity.

His death makes it harder to look ahead and glimpse what MAGA will stand for.

Democrats should go to the ramparts on three issues, with a popular solution for each.

Trump is steering the U.S. model of capitalism closer to the Chinese one, swapping innovation and competition for state control and cronyism.

The Trump administration is rejecting basic medical knowledge and turning back the clock to an era when people were sicker and died sooner.

The Brazilian Supreme Court did what the U.S. Senate and federal courts tragically failed to do.

His death takes us deeper into an age of instability.

His death takes us deeper into an age of instability.

Readers react to the assassination of the right-wing youth activist.