Kaczyński files cassation appeal in defamation suit against Sikorski over Smolensk remarks

Jarosław Kaczyński has filed a cassation complaint after a court dismissed his personal rights lawsuit against Deputy PM and Foreign Minister Radosław Sikorski, who said Kaczyński's brother, President Lech Kaczyński, 'significantly contributed to the Smolensk disaster.' The appeal continues a long-running legal and political dispute over the 2010 crash, with no new factual developments; the outcome could affect domestic political dynamics ahead of elections.