Poland's main opposition party, Law and Justice (PiS), has experienced its most significant internal rupture in over two decades, following a bitter power struggle between party leader Jarosław Kaczyński and former Prime Minister Mateusz Morawiecki. Kaczyński announced that more than 30 MPs had left the party after refusing to sign a 'loyalty declaration' and dissolve an internal grouping. This split weakens the conservative bloc's position ahead of the 2027 parliamentary elections, potentially reshaping Poland's political landscape. Analysts suggest a new force led by Morawiecki could emerge, appealing to moderate conservatives and business-oriented voters, potentially leading to a three-way contest for power. The departure of MPs will reduce PiS's parliamentary seats, potentially making it the second-largest caucus after Prime Minister Donald Tusk's Civic Coalition. The party, which governed Poland from 2015 to 2023, faces challenges in regaining power, with recent polls suggesting it would need coalition partners.