KYIV, UKRAINE - JANUARY 16: Ukrainian President Petro Poroshenko (R) and US Vice President Joe Biden (L) shake hands during a press conference to discuss the outcome of official talks in Kyiv, Ukraine, 16 January 2017. Biden is in Ukraine for a brief visit to meet with Ukrainian President Petro Poroshenko and Prime Minister Volodymyr Groysman. (Photo by Vitaliy Holovin/Corbis via Getty images)