Trump vows revenge on Iran and what to watch in Arizona’s primaries: Morning Rundown

Morning RundownTrump vows revenge on Iran and what to watch in Arizona’s primaries: Morning RundownPlus, the president imposed a 50% tariff on most Canadian goods.Listen to this article with a free profile00:0000:00An image posted to X by CENTCOM on Monday shows U.S. service members aboard the USS Boxer in the Arabian Sea.@CENTCOM / via XShareAdd NBC News to GoogleJuly 21, 2026, 6:59 AM EDTBy Elizabeth Robinson, Josh Feldman, Delia Sara Rangel and Daniela SuarezTrump enters an uncertain moment in an Iran war threatening to become a quagmire. Battleground Arizona gets ready for another set of hotly contested primaries. And test your soccer knowledge with our World Cup quiz.Subscribe to read this story ad-freeGet unlimited access to ad-free articles and exclusive content.Here’s what to know today.Trump enters a dangerous new phase in the Iran warAdd NBC News to GooglePresident Trump vows revenge on Iran for killing U.S. service members02:03President Donald Trump, angered by the deaths of three U.S. service members since Friday, has vowed revenge in Iran as the war between the two countries enters a dangerous and murky new phase. A senior White House official described the state of play as a “time of ambiguity,” with an April ceasefire collapsed and the “memorandum of understanding” that both sides signed last month in tatters.This is Morning Rundown, a weekday newsletter to start your day. Sign up here to get it in your inbox.U.S. Central Command announced a new round of attacks yesterday afternoon. Also yesterday, the Defense Department identified two soldiers killed in Iranian strikes in Jordan as 25-year-old Tyler James Feehan of Hawaii and 19-year-old Isabella Gonzales of Texas. A third U.S. service member was killed in a separate attack in Iraq. The sudden uptick in the pace and ferocity of the conflict spells trouble for Trump, as a war of his choosing threatens to become both a military and a political quagmire.Trump faces an Iranian regime that doesn’t need to...