If the Chief of State was unable to discharge their duties, the Minister of State was a possible choice to replace the Chief of State. The position continued under the the Galactic Alliance
Leia Organa Solo was the first Minister of State, under Mon Mothma. Carlist Rieekan, Q-Varx, and Mokka Falanthas served as Ministers of State under Organa, during her subsequent tenure as Chief of State. It appears that Borsk Fey'lya never appointed one under his term, but Releqy A'Kla was Minister of State under Cal Omas during the Yuuzhan Vong War.