Joseph S. Nye, Jr. considers the implications of Donald Trump’s brazen willingness to tarnish the country’s global image.

There is joy in diplomatic Geneva. The neutral, good offices convenor of Reagan-Gorbachev and Putin–Biden summits is back in ...

China is moving deeper into the soft power void opening up on the world stage. Trump is an unwitting ally. The more mercurial his behaviour, the more China seems the adult in the room.