Who’s the Most Successful One of All? Rating the World’s Leaders.

David Rothkopf, Rosa Brooks, Bob Kagan, and Kori Schake debate who's been the world's most effective head of state since Barack Obama took office. Spoiler alert: It doesn't help to be a good guy.

Since President Barack Obama took office in 2009 — from Afghanistan to Iraq, from Greece to Ukraine — wars, crises, and upheaval have rewritten the geopolitical pecking order. In this special edition of The E.R. podcast, our panel asks who has been the biggest winner of them all, the most successful leader in the world since 2008. Hint: Angela Merkel scored well, but still finished fourth.

Rosa Brooks teaches international law, national security, and constitutional law at Georgetown University. Follow her on Twitter: @brooks_rosa.

Kori Schake is a research fellow at the Hoover Institution, where she focuses on military history. She is a former foreign-policy advisor to Sen. John McCain. Follow her on Twitter: @KoriSchake.

Robert Kagan is a historian, best-selling author, and columnist at the Washington Post. He is also a senior fellow at the Brookings Institution.

David Rothkopf is CEO and editor of the FP Group. Follow him on Twitter: @djrothkopf.

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