Members in both chambers of Congress said the president was threatening war crimes, and a growing number, questioning his mental fitness, called for his removal.

President Trump and Secretary of Defense Pete Hegseth’s eagerness to recount details of the rescue of a downed airman followed weeks of silence on the deadly Tomahawk missile strike on an Iranian school.

G.O.P. lawmakers who have given the Trump administration wide latitude to wage war with no congressional input are growing frustrated as officials offer little detail about ground troops, cost or timeline.