Which official is the chief executive of the state of Illinois?

The Governor serves as the chief executive of the state of Illinois, making them responsible for the administration of the state government. This role includes overseeing state agencies, implementing state laws, and managing the day-to-day operations of the executive branch. The Governor also has the authority to propose state budgets, set policy agendas, and represent the state in various capacities.

In contrast, the Lieutenant Governor serves as the assistant to the Governor and may handle specific duties as assigned, but does not hold the position of chief executive. The Attorney General, primarily responsible for legal matters and upholding the law within the state, and the Secretary of State, who manages public records and oversees elections and vehicle registrations, also do not fulfill the executive role of leading the state government in Illinois. Consequently, the Governor is distinctly positioned as the key executive authority in the state.