Investigators have recovered the black boxes from both aircraft involved in the deadly midair collision near Washington, D.C., and are working to determine the cause.

A timeline of the tragic collision between a commercial plane and a Black Hawk helicopter over the Potomac River, with insights into the ongoing investigation.

Judge John McConnell on Friday sided with nearly two dozen states that requested a temporary restraining order preventing most federal agencies from “pausing, freezing, impeding, blocking, canceling, ...