On December 12th, the National Power Party (NPP) canceled all planned engagements, including a lunch meeting with President Lee Jae-myung and participation in the National Assembly session, in response to the Democratic Party's unilateral advancement of the Judicial Review Act and expansion of Supreme Court justices. Lee's proposed lunch, which was initially agreed to by NPP leader Jang Dong-hyuk, was called off after party members expressed concerns about attending an event perceived as supportive of the Democrats' controversial legal maneuvers.

Jang Dong-hyuk held an emergency press conference to explain the rationale for his party's absence, arguing that it is unreasonable to engage in discussions while being undermined by the Democratic Party’s actions. He claimed that the Democratic Party had insulted the opposition by proceeding with significant legislation without due cooperation, which led to escalated tensions ahead of the Lunar New Year holiday. Alongside this, the NPP's assembly speaker, Song Eon-seok, branded the Democratic Party's maneuvers as a legislative coup that disregards the principles of democracy.

The National Assembly's special committee for the investment law, which had been initiated with bipartisan agreement, experienced disruption right from its first meeting, with members of the NPP expressing skepticism about productive discussions due to the previous legislative actions taken by the Democratic Party. The committee's proceedings were halted despite opposition from the Democratic members, although a public hearing for input on the special law is still scheduled for January 24. The political landscape thus remains fraught with conflict as both parties engage in deepening disputes over judicial reforms and legislative tactics.