Good evening. I'm John Yang. Tonight, Washington and European capitals are still feeling the reverberations of yesterday's heated Oval Office exchange between President Trump and Ukrainian President Volodemar Zelensky.

Hours after Mr. Trump scolded Zelensky for not showing enough appreciation for U.S. support, the Ukrainian leader posted on X,

we are very grateful to the United States for all the support. I'm thankful to President Trump,

Congress for their bipartisan support, and the American people. He also reiterated his opposition

to a quick ceasefire that President Trump wants, saying Russian leader Vladimir Putin can't be trusted.

Now Zelensky is in London to rally the support of European leaders. Today he met with

UK Prime Minister Kier Sturmer, and tomorrow he'll attend a European summit in London to discuss

the way forward. Kurt Volker is a former U.S. Special Envoy to Ukraine and a former U.S. ambassador to NATO.

Mr. Volker, what do you expect to come out of this European summit tomorrow that Zelensky is

attending? Well, I think there are some good things that we've seen already, these expressions

of European support and solidarity for Ukraine. I think it's important for Zelensky psychologically,

I think it's also important for the Ukrainian people. But I hope that behind closed doors,

they're actually talking about what kind of things need to be done to get Ukraine and the United

States and Europe all on the same page again. We can't be creating a dynamic of Europe and Ukraine against the United

States. We all have to pull together. And there, I think it's going to be a matter of Europe

being willing to put on the table forces for security assurances for Ukraine. And I think it's got

to be President Zelensky saying that he wants peace,

he wants to have a ceasefire, he will agree to one as soon as Putin does, to get things back

on track with the U.S. as well. If U.S. aid were to be cut or even go away, could Zelensky,

could Ukraine go on with just European support? Is there enough? Are there enough forces and hardware to keep them going?

It's not enough.

It's good.

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