Kavčič has been criticising the party's leadership the for quite a while. He also stood as candidate for the party's president, challenging the incumbent Katarina Kresal at the last party congress at the end of May.

His decision comes exactly a week after another senior LibDem member, Peter Jamnikar, quit the party disagreeing with the support the LDS council had attested to Kresal, who recently resigned as interior minister due to corruption allegations.

Both the Court of Audit and the Corruption Prevention Commission had found irregularities in the lease of a building for the National Bureau of Investigation (NBI) from her acquaintance, which prompted Kresal to tender resignation as minister.

Kavcic said at the time that she should also step down as LDS president.

Kresal, however, decided to seek a vote of confidence from the party council instead and was backed unanimously; however, the vote was boycotted by both Kavcic and Jamnikar.

After Jamnikar left the party last week, media reported that he and Kavcic were forming a new party, but Kavcic told the STA that "no concrete steps were made" in that direction yet.