A's prisoner exchange between Russia and Ukraine was the largest since the war's onset.

But skepticism of a lasting truce and President Trump's peacemaking remains.

Former ambassador to Ukraine, Bridget Brink, resigned her position in mid-April,

faulting the Trump administration's Ukraine policy.

A diplomat for nearly three decades, Brink served as ambassador to Ukraine under

both Presidents Biden and Trump, starting shortly after Moscow's full-scale invasion three years

ago. She's now considering a congressional run as a Democrat representing Michigan, and

joined me yesterday to discuss her resignation and the war. Ambassador Brank, welcome to the NewsHour.

Thank you for being here.

Amna, thanks for having me on.

So in your op-ed for the Detroit Free Press,

you explained why you chose to resign,

and you wrote this.

You said, I could no longer, in good faith,

carry out the administration's policy.

What specifically did you see or did you hear that pushed you to make this

decision? Well, maybe I can just step back a minute to talk about the context, but over three

years of leading my team in Kiev, I was there as Russia launched thousands of missiles and drones

that killed men, women, and children in their sleep, that tried to take down the energy grid

and take out the power, the heat, and the lights

for millions of people

and committed war crimes and atrocities

...