Little is known about immunity in a patient like Trump, scientists warn.

What is the Palestinian Islamic Jihad?

The Sandy Hook defamation cases have put Alex Jones’s finances under scrutiny.

Democrats hold off Republican amendments, and some of their own.

Fire at Cuban Oil Facility Leaves Dozens Injured, Hundreds Evacuated

Artillery duels near a Ukrainian nuclear complex heighten safety fears.

A war last year between Hamas and Israel left hundreds dead, mostly in Gaza, but resolved little.

The New Politics of Abortion

A 5-year-old running to her father is among those killed in Gaza.