February 20, 2014
Vice President Biden spoke with Prime Minister Tusk by phone today to consult on the situation in Ukraine. They discussed steps the United States, Poland, and the European Union are taking to support an end to the violence and a political solution that is in the best interests of the Ukrainian people. The Vice President and Prime Minister agreed to stay in close touch in the days ahead.
Joseph R. Biden, Jr., Readout of the Vice President's Call with Prime Minister Tusk of Poland Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/309756