Modifies the definition of "one subject" for purposes of the bills filed by the general assembly

This constitutional amendment clarifies Missouri's rule that bills must cover only one specific legislative purpose. It replaces the current vague standard with a precise definition requiring bills to address a single, focused topic (e.g., one policy area or problem). Exceptions remain for general budget bills and certain other legislation specified in the constitution. The change aims to prevent bills from bundling unrelated issues, though it requires voter approval to take effect.