Petro’s response to son’s arrest proves his commitment to democracy; Chile’s constitutional rewrite is becoming a headache for the right; Kenya’s promise to lead Haiti mission wins praise abroad.

Sub-Saharan Africa is home to many of the world’s longest-ruling heads of state. Pro-democracy advocates have at times successfully stopped presidents from extending their mandates, but the authorita…

Criminal groups have captured parts of the state. A broad political coalition must fight corruption and root them out.