Trump’s religious advisers have a peculiar view of Christianity.

Asking what voters think of a president’s performance is important, but so is gauging how they feel.

In its first military action, the Trump administration showed itself to be reckless and unserious.

As with most confrontations, the merits in this clash are not one-sided. But the Trump administration is acting in bad faith.

Young researchers are choosing between staying in science or staying in the United States.

I’ve sought to address what people believe but are often too afraid to say.

Protests against Hamas are encouraging, but prolonged and unnecessary killing still seems likely.

Trump’s threat to impose tariffs on Mexico undermines his stated intention to eliminate the “chaos” at America’s southern border.

Responses to the mass firings in the federal government. Also: Cory Booker’s speech; talk of a third Trump term; Republicans and Ukraine; a letter to Canada.

Republicans would be wise to seize the moment while this failure is raw to remind Trump what a political loser his buddy is turning out to be.

Trump wants to give power back to the states. Some states are lowering standards.

Poland pulled back from an authoritarian slide. What can the U.S. learn from its nonpartisan approach?

The outbreak in Texas could become much, much worse.

Those of us who’ve seen secret police in action can’t shake a feeling of dreadful familiarity.

Members of Trump’s coterie are obsessed with ancient Rome and its collapse. But their interpretation of Roman history is based on common misconceptions.

Beijing’s message to America: We’re not afraid of you. You aren’t who you think you are — and we aren’t who you think we are.

Trying to rebuild a war-ravaged country without humanitarian aid or sanction relief is like trying to get up with a boot on your neck.

What on earth are Republican leaders thinking in trying to stop a Republican proposal to make it easier for new parents to vote in Congress?

Protests in Gaza against Hamas are the first necessary steps on the road to real peace.

Are the mass of voters really worked up about this administration’s actions? Tuesday night may provide some answers.

Readers discuss how universities should respond to the administration’s demands and threats to cut off funding.

What Democrats need to do now will not be very easily done.

Reports that the defense secretary shared sensitive information on an unclassified messaging app are straining the limits of his credibility.

Here’s what I learned about Trump’s second term by reading his first 100 executive orders.

The social psychologist Jonathan Haidt discusses the “parents’ revolution” on smartphones that his book “The Anxious Generation” has started.

As Bertolt Brecht wrote, it is an unhappy land that needs heroes.

Advances in genetic testing and artificial intelligence are changing what’s possible for those undergoing I.V.F. Are we ready for the future of fertility?

The social psychologist Jonathan Haidt discusses the “parents’ revolution” on smartphones that his book “The Anxious Generation” has ignited.

Taiwan can no longer shelter under the delusion that the U.S. will defend it against China.