What is required for the Illinois General Assembly to override a Governor's veto?

The correct requirement for the Illinois General Assembly to override a Governor's veto is a two-thirds majority vote in both houses. This high threshold ensures that overriding a veto is a significant consensus, reflecting a strong agreement among legislators that the bill is necessary despite the Governor's objections.

In Illinois, achieving a simple majority in one house would not suffice to indicate broad legislative support for overturning a veto, as that could lead to scenarios where a small faction could force significant policy changes against the will of the executive branch. Similarly, a three-fifths majority does not meet the strict standards set for veto overrides, and any requirement for unanimous consent would be impractical and unattainable, making it unlikely that the legislature could ever override the Governor's veto. Therefore, a two-thirds majority in both houses is the correct and standard procedure to ensure a balanced and careful approach to overriding executive decisions.