Ukrainian President Petro Poroshenko, second left, and his wife Maryna, second right, arrive to speak to journalists ahead of upcoming presidential elections on April 21, at the Olympic stadium in Kiev, Ukraine, Sunday, April 14, 2019. With one week remaining until Ukraine's presidential election runoff, President Petro Poroshenko has come to the country's largest sports stadium for a proposed debate where his opponent didn't show up. (Markiv Mykhailo, Ukrainian Presidential Press Service via AP)