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Iran's Supreme Leader Ayatollah Khamenei. Photo: Iranian Leader's Press Office - Handout/Anadolu Agency/Getty Images

President Trump on Monday announced that the U.S. would impose a new set of sanctions targeting top officials in the Iranian government and their access to the international financial system, including Supreme Leader Ayatollah Ali Khamenei.

"We do not seek conflict with Iran or any other country. ... I can only tell you we cannot ever let Iran have a nuclear weapon."

The big picture: Escalating tensions with Iran in recent weeks led Trump to sign off and then cancel a military strike on Thursday evening, calling it a disproportionate response to Iran's downing of an unmanned U.S. drone. The new sanctions are yet another addendum to the "maximum pressure" campaign that the Trump administration has undertaken in the wake of the president's withdrawal from the 2015 Iran nuclear deal.

  • Treasury Secretary Steven Mnuchin told reporters on Monday that the U.S. will impose sanctions on Iranian Foreign Minister Mohammad Javad Zarif later this week.
  • Mnuchin also said that he could not comment on whether military action against Iran is off the table.

Go deeper: Timeline: How Trump and Tehran came to the brink of war

Go deeper

Robert Costa: Gen. Mark Milley "was not going rogue" with China calls

Washington Post journalist Robert Costa on Monday said in an interview with ABC's Good Morning America that Joint Chiefs Chairman Mark Milley "was not going rogue" when told his Chinese counterpart that the U.S. would not launch a surprise attack.

Driving the news: President Biden last week expressed "great confidence" in Milley after excerpts released from Costa's and Bob Woodward's book "Peril" revealed calls where Milley admits he would let China know ahead of time if former President Trump decided to attack.

Delta variant fears curb fall flying

Travelers in the Miami International Airport. Photo: by Joe Raedle/Getty Images

Continued worries about the Delta variant are derailing fall travel plans.

Driving the news: Thanksgiving domestic flight bookings in August were 18% lower this year compared with 2019, according to a new Adobe Digital Economy Index report out Monday morning.

Ben Geman, author of Generate
16 mins ago - Energy & Environment

The breadth and limits of corporate carbon moves

Illustration: Sarah Grillo/Axios

This week will showcase how more big companies are taking steps to cut emissions — and why corporate pledges only go so far.

The big picture: It's Climate Week. That's the annual New York City event that brings together businesses, governments and activists for speeches, symposiums and pledges. The event typically serves as a venue for corporations to announce their latest efforts, and that's already starting.