FILE - In this file photo taken Feb. 19, 2020, Poland's President Andrzej Duda, center, campaigning for his re-election in Warsaw, Poland. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote is creating anxiety and anger, and critics say the plan threatens public health and democracy in Poland.(AP Photo/Czarek Sokolowski)

File - In this file photo taken Feb. 15, 2020, in Warsaw, Poland are seen Poland's President Andrzej Duda, right, with wife Agata Kornhauser-Duda, campaigning for Duda's re-election in May 10 national vote. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote, though critics say the plan threatens public health and democracy in Poland. (AP Photo/Czarek Sokolowski)

FILE - In this file photo taken April 16, 2020, Poland's right-wing ruling party leader, Jaroslaw Kaczynski as he votes in parliament wearing a mask against the coronavirus spread. Kaczynski wants to go ahead with May 10 presidential election despite the COVID-19 pandemic, and wants the vote to be by post, saying it will be safe. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote is creating anxiety and anger, and critics say the plan threatens public health and democracy in Poland. (AP Photo/Czarek Sokolowski, FILE)

FILE - In this file photo taken Feb. 29, 2020, liberal opposition Civic Platform party candidate for president Malgorzata Kidawa-Blonska, campaigning in Warsaw, Poland. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote is creating anxiety and anger, and critics say the plan threatens public health and democracy in Poland.(AP Photo/Czarek Sokolowski)

In this photo taken April 23, 2020, an unusual sight of a mailbox on church grounds at St. Stanislas Kostka church, the parish church of Poland's ruling party leader Jaroslaw Kaczynski, in Warsaw, Poland, who wants to go ahead with a postal vote for the presidential election despite the COVID-19 pandemic. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote is creating anxiety and anger, and critics say the plan threatens public health and democracy in Poland.(AP Photo/Czarek Sokolowski)

FILE - In this file photo taken April 6, 2020, in Warsaw, Poland, are seen liberal opposition Civic Platform party candidate for president Malgorzata Kidawa-Blonska, right, and party leader Borys Budka, left. The Polish government’s determination to move forward with the May 10, presidential election during the coronavirus pandemic by making it an all-postal vote is creating anxiety and anger, and critics say the plan threatens public health and democracy in Poland.(AP Photo/Czarek Sokolowski, FILE)