WARSAW, Poland –  Poland’s main opposition leader has called for a no-confidence vote in the liberal government of Prime Minister Donald Tusk following leaks of secretly taped conversations of some ministers and officials.

Jaroslaw Kaczynski asked the Parliament on Wednesday to oust Tusk’s team and proposed his own candidate for new government leader. Kaczynski’s Law and Justice party, which mixes national Catholic values with socialist views, is ahead of Tusk’s ruling party in opinion polls, more than a year ahead of parliamentary elections.

The vote was expected on Friday. The ruling coalition has a narrow majority in parliament, and last month easily won a vote of confidence.

Tusk has refused to step down over the illegal tapes.