As the presidential debate season opens, expect plenty of contrasts between how Hillary Clinton and Donald Trump view U.S. interactions in the world, writes CFR’s Elizabeth Saunders.

The fall of the Berlin Wall 20 years ago marked a triumph of the U.S. strategy of containment. But U.S. policymakers have been struggling to establish new guidelines for confronting the world’s compl…

While some G-20 leaders want to map out a "New Deal for the Twenty-First Century," CFR’s Stewart Patrick says they risk spawning a twenty-first century version of the Great Depression if they don’t a…