Each Friday, I look at what the presidential challengers are saying about foreign policy on the campaign trail.

Each Friday, I look at what the presidential challengers are saying about foreign policy. This week: endorsements for Joe Biden, U.S. troops, and new candidates.

Each Friday, I look at what the presidential contenders are saying about foreign policy. This week: how Donald Trump and Joe Biden say the United States should deal with Afghanistan

This afternoon I joined James M. Lindsay, senior vice president, director of studies, and Maurice R. Greenberg chair at the Council on Foreign Relations, to discuss the political and economic crisis …

Oriana Skylar Mastro is an assistant professor of security studies at the Edmund A. Walsh School of Foreign Service at Georgetown University. Ely Ratner is the Maurice R. Greenberg senior fellow for …