President Trump confirmed Iran shot down a U.S. Army Apache helicopter, stating that the United States "must" respond. This comes after optimistic remarks about potential negotiations to end the war with Iran.

Monday night, President Trump spoke optimistically about negotiations to end the war with Iran. Now, he has confirmed that Iran shot down a U.S. Army Apache helicopter, saying the U.S. must respond. <p>Monday night, President Trump spoke optimistically about negotiations to end the war with Iran. Now, he has confirmed that Iran shot down a U.S. Army Apache helicopter, saying the U.S. must respond.</p><img src="https://media.npr.org/include/images/tracking/npr-rss-pixel.png?story=nx-s1-5851862" /...