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Poland’s biggest opposition party faces split over tensions about its direction

Jarosław Kaczyński said the departures follow a failed loyalty pledge as the party confronts its worst internal rupture in more than two decades.

  • On Friday, Law and Justice leader Jarosław Kaczyński announced that more than 30 MPs have left the party following a bitter power struggle with former Prime Minister Mateusz Morawiecki.
  • Tensions peaked after Kaczyński demanded dissolution of Rozw Plus, an association founded by Morawiecki and his allies. Morawiecki refused to sign a "loyalty declaration," and talks between the two camps failed to produce agreement.
  • Marking the most serious internal rupture since 2001, the dispute reflects a battle over strategy following the 2023 election defeat. Jarosław Kaczyński steered PiS toward a conservative course while Morawiecki argued for broader centre-right appeal.
  • Prime Minister Donald Tusk's governing coalition hopes the breakup weakens its main rival by dividing conservative voters. A separate political force led by Morawiecki could reshape Poland into a three-way contest for the 2027 elections.
  • Recent polls show PiS support varies from 19 percent to just under 30 percent, while the party maintains confrontational opposition to the European Union's European Green Deal and Emissions Trading System.
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79 Articles

Lean Right

A directional struggle has led to the split of the largest Polish opposition party PiS. Party leader Jaroslav Kaczynski fires his deputy, the former Prime Minister Mateusz Morawiecki. The government rubs its hands.

·Berlin, Germany
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Lean Left

Repercussions also for Meloni: the conservative also loses the presidency of the Ecr that passes to the Italian Carlo Fidanza, of Brothers of Italy

·Rome, Italy
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Center

In Poland, the largest opposition party - PiS - has split.

·Germany
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The opposition party for law and justice by Jaroslaw Kaczynski no longer tolerates internal deviants. That is what stirs up the Polish party system.

·Zürich, Switzerland
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The split of the right-wing conservative PiS moves the political landscape in Poland.

·Zürich, Switzerland
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Left

The Polish political party Law and Justice (PiS), the country's main right-wing opposition party, announced today that it has effectively split and lost at least 30 of its MPs. If the split is officially confirmed, PiS will lose its position as the largest party in parliament and become smaller than Prime Minister Donald Tusk's Civic Platform. The dispute revolves around internal disagreements within PiS over the current...

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  • 47% of the sources lean Left
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Gazeta broke the news in Poland on Tuesday, July 21, 2026.
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