What to Know About Iran’s Response to Trump’s Letter Urging Talks

Tehran neither rejected negotiations nor accepted face-to-face talks in its response to President Trump’s letter calling for talks to curb Iran’s advancing nuclear program. Here’s what to know.

Trump Freeze on Aid to Nuclear Inspectors Undercuts His Iran Policy

The president’s halt of foreign aid upended two U.S. programs that help the International Atomic Energy Agency find clues about Iran’s drive to build atomic bombs.

As Trump and Putin Circle Each Other, an Agenda Beyond Ukraine Emerges

President Trump jabs at the Russian leader with threats; Vladimir Putin responds with flattery. But there are notable signals in their jousting, including a revived discussion about nuclear arms control.

What Trump Could Do on Ukraine, Iran, China and Crises Around the Globe

President-elect Donald J. Trump has made big promises on Ukraine, Iran, China and crises around the globe. But he will have to make difficult choices.