Michigan voters face an automatic constitutional convention question on the November 2026 ballot under Article XII, Section 3 of the 1963 Constitution, which requires submission every 16 years. Historical precedent shows consistent rejection, including 67% opposed in 2010, reflecting voter preference for incremental amendments over wholesale revision. Organized opposition from labor, business, and democracy groups has raised substantial funds through committees such as Protect MI Constitution from Special Interests, while support remains limited to isolated Republican legislative voices without comparable campaign infrastructure. Bipartisan concerns center on procedural uncertainty, delegate selection risks, and potential for contested outcomes on issues like revenue limits or redistricting. This backdrop sustains the 95.5% trader consensus against approval. Late developments, such as unexpected endorsements, turnout shifts in the midterm environment, or coordinated advocacy highlighting specific reforms, represent the narrow pathways that could narrow the margin before election day.