President Yoon Suk-yeol is likely to attend the impeachment trial in person and present oral arguments. As a legal expert, he maintains the position that the December 3rd declaration of martial law was a legitimate exercise of state governance and does not meet the requirements for insurrection charges. The Constitutional Court allows parties who hold attorney qualifications to participate directly in trials without a representative. President Yoon is expected to make strong arguments through 'self-representation' based on his experience as Prosecutor General.