He recalls the popular challenge now underway against Omar al-Bashir’s rule in Sudan; the deaths of Kofi Annan, the first African secretary General of UN, and Winnie Mandela, a flawed leader of the South African liberation movement; the highly positive emergence of the reform-minded Abiy Ahmed, the Ethiopian prime minister; and the international attention to Congolese surgeon Denis Mukwege, who won a Nobel Peace prize for his work with rape victims.

Last week’s third round of Democratic presidential debates gave foreign policy some attention. The candidates spent a shade under forty minutes discussing events beyond America’s borders. That is mor…

Elizabeth Warren and Bernie Sanders are both progressives, but their foreign policy visions diverge in important ways.