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…

The United Nations’ top leadership position has broad authority to steer the organization’s agenda, but its impact has varied widely since 1946.

Comprehensive immigration reform has eluded Congress for years. With border crossings at a record high, how are policymakers responding?

Here’s how different health-care systems, including single-payer and government-run, have contended with the coronavirus.