'Brutal': Ukrainian ambassador weighs in on Russia's Christmas attack

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CNN's Wolf Blitzer speaks with Ukrainian Ambassador to the United States, Oksana Markarova, about the Christmas Day attack by Russia on the Ukrainian power grid. #CNN #News cnn,cnnnews,latest news,news,cnn news central,us news,cnn newsroom,abc news,cnn prima news,abc news live,live news,cnn ao vivo,cnn brasil,cnn special report,cnn ao vivo agora online,politics news,cnn ao vivo agora,cnn this morning,cnn brasil ao vivo,jornal cnn brasil,cnn brasil notícias,news abc,top news,fox news,election news,hora news,link news,daily news,world news,trump news,news das 10,fox news channel