The main opposition People Power Party(PPP) announced Tuesday that it would hold a rally at Dongdaegu Station Plaza on September 21 to denounce what it called opposition suppression and authoritarian politics under President Lee Jae Myung and the ruling Democratic Party(DP).

The move comes as the DP presses for the resignation of Jo Hee-de, chief justice of the Supreme Court, and seeks to establish a special court division related to former President Yoon Suk Yeol's imposition of martial law.

PPP spokesperson Park Sung-hoon said party lawmakers had vowed not to tolerate what they saw as the president and ruling party's attempts to undermine judicial independence.

He added that members had called for the party to take its fight beyond the National Assembly and onto the streets and that PPP leadership will discuss its next steps.

The PPP also said it is considering filibusters to block DP-led bills that lack bipartisan agreement.