[6] Former president of Poland Lech Wałęsa and the chairman of the Committee for the Defence of Democracy Mateusz Kijowski spoke at the party's founding conference, and letters were read from former presidents Bronisław Komorowski and Aleksander Kwaśniewski.

[7] In January 2018, Michał Kamiński, a prominent member inside UED, joined the parliamentary club led by the Polish People's Party.

[8] Soon after, they established a joint parliamentary club with Jacek Protasiewicz as the vice-president, while Kamiński was chosen to be a part of the presidium.

[17] During the 2020 presidential election, it supported Władysław Kosiniak-Kamysz as the candidate for the Polish Coalition.

[18] The Union of European Democrats is largely a liberal conservative and social-liberal party that is described as centrist,[3][19] or centre-right.

[3] The party program declaration is concerned with the defense of Polish democracy, support for Poland's membership of the European Union and NATO, and the putative threats to Poland posed by Russia.