Biden on Russia’s Putin: `This man cannot remain in power’


              President Joe Biden delivers a speech about the Russian invasion of Ukraine, at the Royal Castle, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              U.S. President Joe Biden delivers a speech at the Royal Castle in Warsaw, Poland, Saturday, March 26, 2022. Biden is in Poland for the final leg of his four-day trip to Europe as he tries to maintain unity among allies and support Ukraine's defence. (AP Photo/Petr David Josek)
            
              U.S. President Joe Biden delivers a speech at the Royal Castle in Warsaw, Poland, Saturday, March 26, 2022. Biden is in Poland for the final leg of his four-day trip to Europe as he tries to maintain unity among allies and support Ukraine's defence. (AP Photo/Petr David Josek)
            
              President Joe Biden delivers a speech about the Russian invasion of Ukraine, at the Royal Castle, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              President Joe Biden meets with Ukrainian refugees and humanitarian aid workers during a visit to PGE Narodowy Stadium, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              President Joe Biden meets with Ukrainian refugees and humanitarian aid workers during a visit to PGE Narodowy Stadium, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              President Joe Biden meets with Ukrainian refugees and humanitarian aid workers during a visit to PGE Narodowy Stadium, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              President Joe Biden meets with Ukrainian refugees and humanitarian aid workers during a visit to PGE Narodowy Stadium, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            
              President Joe Biden meets with Ukrainian refugees and humanitarian aid workers during a visit to PGE Narodowy Stadium, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)
            U.S. President Joe Biden, left, and Polish President Andrzej Duda, center, attend a military welcome ceremony at the Presidential Palace in Warsaw, Poland, on Saturday, March 26, 2022. (AP Photo/Czarek Sokolowski) 
              President Joe Biden participates in an arrival ceremony with Polish President Andrzej Duda at the Presidential Palace, Saturday, March 26, 2022, in Warsaw. (AP Photo/Evan Vucci)