3 March – Hungary's Fidesz party led by Prime Minister Viktor Orbán decided to leave the EPP Group, after the EPP Group's new rules.[3][4]
April[]
1 April – The Polish Prime Minister Mateusz Morawiecki, and Italian former Minister of the Interior and leader of Northern LeagueMatteo Salvini vists Hungary to meet with Hungarian Prime Minister: Viktor Orbán. It was wildly reported by the media they talked about forming a New Nationalist Conservative political group of the European Parliament to counter European People's Party group.[5][6][7]
14 July — The Polish Constitutional Tribunal rules that any interim measures from the top European court against Poland's judicial reforms were "not in line" with the Polish constitution. the Polish justice minister, Zbigniew Ziobro, said the constitutional court’s decision was “against interference, usurpation and legal aggression by organs of the European Union”.[10][11][12]
October[]
October 7 — The Polish Constitutional Tribunal rules that some articles in EU treaties are “incompatible” with its national legislation and unconstitutional. it also ruled that Poland’s constitution takes precedence over some EU laws.[13][14][15]