Live from NPR News in Washington, I'm Janine Herbst.

The U.S. Israeli war in Iran is in its fourth day, and his questions on the reasons for the attack grow.

President Trump's answers keep changing.

Over the weekend, Trump said it was regime change.

Today, he says it's because he thought Iran would attack the U.S. first.

But Trump says it's not clear who will take over for the slain Ayatollah, Khanei.

And here's Franco, Ordonia has more.

When asked by reporters who he liked to take over, he's had most of the people that they had in mind were dead.

I mean, Trump actually made kind of a comparison with Iran, Iran and Venezuela, that operation

where the swooped in and captured President Nicholas Maduro, he noted how they kept

the government pretty much intact in order to main control and kind of prevent the kind of chaos

created by the power vacuum during the Iraq war.

But again, he said most leaders are dead.

He said even their backup options

may be dead. And he acknowledged some of the concerns may be that one, even a more dangerous

person than the Supreme Leader, could come to power, calling that a worst-case scenario.

In Paris Franco Ordonez reporting, Secretary of State Marco Rubio says U.S. embassies are under

attack from what he calls

a terrorist regime. This after several were hit by Iranian drones, including a strike near the U.S.

embassy in Dubai. The State Department warned NBC staff and Americans living in several

mid-east countries to evacuate on commercial airplanes on their own, and some 9,000 did.

Today, Rubio says the U.S. is now helping Americans get out.

...