Historical precedent: Courts wrestle with White House's 'invasion' claim

U.S. Army soldiers patrol the U.S.-Mexico border at Eagle Pass, Texas, on Jan. 24. The Trump administration has often used the word invasion to describe illegal immigration, but that framing has not been fully tested in court until now.

Federal judges are looking back to the 18th century to define what constitutes an invasion, weighing a key legal argument for the Trump administration's use of a wartime deportation authority.

(Image credit: Charly Triballeau)