In response to the U.S. Supreme Court ruling that deemed the reciprocal tariffs imposed by the Trump administration illegal, the Democratic Party of Korea (DPK) has expressed its intention to prioritize national interests and work closely with the government. According to DPK spokesperson Park Soo-hyun, the government plans to comprehensively assess the implications of the ruling and the U.S. government's stance to approach matters in the best interests of the nation. The DPK calls for bipartisan cooperation in safeguarding the competitiveness of South Korean industries and urges the opposition to focus solely on the well-being of the people and national interests.

Conversely, the People Power Party (PPP), taking a critical stance, claims that the ruling was foreseeable and criticizes President Lee Jae-myung for his silence. PPP spokesperson Park Seong-hun asserts that a competent government would have prepped contingency plans (Plan B) and strategized responses in light of potential alternative tariffs from the U.S. He stresses that, given the critical nature of this issue for the national economy and industry, it is unusual for the president to remain silent instead of reassuring markets and explaining the situation to the public. The criticism paints President Lee’s inaction as tantamount to a 'contemptible silence' at a crucial time.

Additionally, the commentary from the Justice Innovation Party highlights the need for a thorough analysis of the potential alternative measures indicated by former President Trump. They warn that South Korean businesses could fall victim to unilateralism unless preemptive actions are taken. The differing reactions from the two major political parties illustrate a divided approach to tackling the implications of the U.S. Supreme Court's ruling and its effects on South Korea's economic strategy, emphasizing the urgency for clear government communication and action in the face of international economic challenges.