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"Thank you for believing in Ukraine and for the fact that Ukraine has been and remains in your heart," Groysman said, according to Stoliarchuk's tweet.

Read alsoRFE/RL: Biden praises Pence's knowledge of Russia, gives him tips on UkraineAs UNIAN reported earlier, Joe Biden was set to meet Ukrainian leaders on January 16. After the meeting with President Petro Poroshenko, a joint statement for the press is scheduled.