Readers respond to former President Joe Biden’s prostate cancer diagnosis. Also: A.I. governance; a reality show contest for citizenship?

What Joe Biden understands about America’s place in the world, even now.

Moody’s announcement last week means that not one of the firms that rate America’s debt still consider it pristine.

Despite significant evidence that a deluge of pornography has a negative impact on modern society, there is a curious refusal to publicly admit disapproval of it.

The Trump administration’s relocation of federal offices outside of Washington corrupts what could be a valuable reform.

Expert-backed ideas for continued progress.

A.I. is threatening entry-level jobs.

Even more than free legal help, what the president gets from the firms is the joy of publicly dominating and demeaning his adversaries.

Trump’s fixation on tariffs while he undermines America’s competitive strengths is hastening the onset of the “Chinese Century.”

Readers respond to the Missouri senator’s argument for protecting Medicaid from cuts.

Before there was D.E.I., there was Desi Arnaz, rewriting the rules to become Hollywood’s unlikeliest mogul. His success still holds valuable lessons.

His overhaul of the State Department’s human rights bureau will make the United States weaker.

American pop culture typically goes country when the White House goes Republican.

The overwhelming deluge of bag content made me desperate for the luxury my lackluster bank balance would never permit.

American politicians have been for sale for far longer than Donald Trump has been around and in far more ways than he and his family have so far pioneered.

As Europe embraces the night train, the United States seems to be sleepwalking into a transport dead end.

You might assume that Trump would prioritize the interests of rural voters.

Don’t panic. Show resilience.

Just don’t ask it about “white genocide.”

Even Shakespeare might not have dreamed up this family.

We want to hear from readers ages 18-30 about their aspirations for the future.

A journey to the Smithsonian’s National Museum of African American History and Culture took me places I will not soon forget.

The United States supposedly can’t afford $1 a day to save starving children, but Biden and Trump squandered $7 billion bombing Yemenis.

Friedrich Merz and Germany’s political establishment must unite the center to ward off the far right.

It’s the quest for the handshake that guides Trumpian foreign policy on almost every front.

Readers respond to a psychiatrist’s essay arguing for more research on the effects of S.S.R.I.s like Prozac and other drugs.

Trump’s insistence on a cease-fire without addressing what the warring sides really want at this stage has not worked.

Responses to a guest essay about the effects of Medicaid cuts. Also: A third presidential term; a display of faith; loud music in public.

More than lying to the public, too many Democrats were lying to themselves.