韩德洙最后时刻辞职参选、李在明官司重审，韩国大选悬念陡增

Group 1 - The core viewpoint of the article is the political dynamics surrounding the upcoming South Korean presidential election, particularly the implications of recent judicial decisions and candidate announcements [2][12]. - Former Prime Minister Han Duck-soo officially announced his candidacy for the presidency on May 2, 2025, following the impeachment of former President Yoon Seok-youl [2][8]. - A recent poll conducted by four South Korean polling agencies shows Lee Jae-myung leading with a support rate of 42% [3][11]. Group 2 - Han Duck-soo's resignation from his position as Prime Minister was strategic, as it allows him to participate in the election while avoiding potential political risks associated with ongoing impeachment motions against his successor [5][6]. - The new acting president will be Lee Joo-ho, the Vice Prime Minister and Minister of Education, following the resignation of the previous acting president [7]. - The National Power Party's primary results indicate that candidates Kim Moon-soo and Han Dong-hoon will advance to the final round of voting, with plans to unify their candidacy with Han Duck-soo to consolidate conservative support [10][11]. Group 3 - The Supreme Court's recent decision to send Lee Jae-myung's case back for retrial has introduced uncertainty into his candidacy, despite his current lead in polls [12][14]. - Legal experts suggest that the likelihood of Lee Jae-myung being disqualified from the election is low, given the tight timeline before the election and the potential for appeals [14]. - The political landscape remains fluid, with ongoing discussions about the implications of judicial rulings on candidates' eligibility and the overall election outcome [12][14].