Duda, originally a European Parliament backbencher from the Law and Justice (PiS) party before becoming president in 2015, has long been loyal to the nationalist party.
Tusk and his allies have promised wrenching changes to the PiS program — rolling back draconian restrictions on abortion, limiting the role of religion in the education system, and firing PiS loyalists in media and state companies. The likely incoming government also wants to undo years of judicial reforms that were aimed at bringing judges under tighter political control but which ignited a battle with the EU that saw Brussels punish Warsaw by withholding billions in EU funds over rule of law concerns.
The problem for Tusk is that many of those changes require new laws, and Duda wields a presidential veto that will be very difficult to overcome.
“I have used the veto more than once. I will not hesitate to do so again,” Duda told the weekly.
What kind of laws did Duda veto in the past? It's a bit confusing because IIRC PiS also held the PM position in the past decade or so (2015-2023).