ANKARA: A Turkish court effectively ousted the main opposition leader Ozgur Ozel on Thursday, annulling the 2023 party congress that elected him chairman in a ruling that dealt a blow to President Tayyip Erdogan’s challengers and hit financial markets. The appeals court annulled the congress over irregularities and ruled that former Republican People’s Party (CHP) Chairman Kemal Kilicdaroglu — a divisive figure within the party who lost to Erdogan in an election earlier in 2023 — should replace his successor Ozel.