Polish President Andrzej Duda is set to meet U.S. President Donald J. Trump on the sidelines of the Conservative Political Action Conference (CPAC) tomorrow. This comes after President Duda has acted as a mediator between President Trump and Ukrainian President Volodymyr Zelensky following their recent tense back and forth in the past week. Earlier today, on a phone call with President Zelensky, President Duda cautioned him to stay “committed to the course of calm and constructive cooperation with POTUS Donald Trump.”