Biden to meet with Ukrainian refugees in Poland

President Biden will meet with Ukrainian refugees, and he'll deliver a "major address" while he's in Warsaw, Poland, national security adviser Jake Sullivan told reporters Friday on Air Force One.

The president is in Rzeszów, Poland, not far from the Ukrainian border, and he travels to Warsaw Friday to meet with Polish President Andrzej Duda on Saturday. 

Sullivan said Mr. Biden's address Saturday "will speak to the stakes of this moment, the urgency of the challenge that lies ahead, what the conflict in Ukraine means for the world, and why...