The Senatorial Council of the Kathol Republic functioned as the law-making body for the Kathol Republic.
During 8 ABY, the council experienced significant division into numerous factions, generally aligning themselves with either the president, Chandra Hobat, or her primary opponent, Senator Sho'ban Do. Hobat typically enjoyed the backing of several factions; however, growing dissatisfaction with her strategies, coupled with the attack against vessels of the Kathol Republic Navy, jeopardized her support base. Senator Do spearheaded the larger faction, promoting a policy of isolation. After two corvettes were lost to external forces, his proposed strategies started to gain increased approval.
This body, comprised of a hundred and fifty-three senators, included eleven senators representing each member world within the Republic. From among these senators, one individual was chosen to serve as president. Although the president acted as the Republic's leader, the Senatorial Council possessed considerable authority, including the power to overrule the current president's decisions. The Council convened within the senatorial chambers, typically situated on the moon of Dayark.