BRUSSELS — President Andrzej Duda of Poland has tested positive for Covid-19 and will go into quarantine, his spokesman said on Saturday, adding to the list of global leaders who have been ...

Poland's departing President Andrzej Duda visited Ukraine on Saturday and urged Kyiv to be patient during the handover to his nationalist successor, Karol Nawrocki.

Mr. Trump praised Duda ahead of the Polish election on June 28, saying he believes Duda "will be successful" in winning re-election. He also underlined the "shared cultural values" of the U.S. and ...