President Trump pulled out of the last Iran nuclear accord in 2018, and negotiators from the two nations have not met face-to-face since. Now he faces the challenge of dismantling the Iranian program.

© Haiyun Jiang for The New York Times

Striking the Iranian-backed Houthi militia serves United States interests, and puts pressure on Iran over its nuclear ambitions.

Striking the Iranian-backed Houthi militia serves United States interests, and puts pressure on Iran over its nuclear ambitions.

© Mohammed Hamoud/Anadolu, via Getty Images

The Trump administration should back away from threats and engage Iran in an effort to bring a diplomatic halt to its nuclear weapons capability.

Three Canadians and an American engage in a colloquy about relations between the countries. Also: Nuclear agency cutbacks; silencing Voice of America.

Beijing sought to position itself as a key player in negotiations with Iran over its nuclear program, as President Trump called for talks with Tehran.

What happens when a superpower goes rogue.

A presidential visit to Beijing is an opportunity to make real progress in achieving a more balanced, stable relationship with China.