Amendment 4 and the Respect MO Voters Petition: What Missourians Should Know
Missouri voters may soon face two competing plans for the state’s initiative petition process.
One is Amendment 4, which will appear on the 2026 ballot. Amendment 4 would require citizen-led constitutional amendments to win both a statewide majority and a majority in each Missouri congressional district. The Amendment would require broad statewide support for changes to the constitution, not just a simple majority driven by a few population centers.
The other is a petition backed by a group called Respect MO Voters, a proposed constitutional amendment that would make it harder for legislators to change voter-approved measures. The campaign recently submitted signatures to place its measure on the ballot. Those signatures still need to be verified. If certified, the measure could appear in the same election cycle as Amendment 4.
The question for voters is simple: Should it be harder to change Missouri’s Constitution, or harder for lawmakers to change what passes at the ballot box?
What Amendment 4 Would Do
Today, a citizen-led constitutional amendment can pass with a simple statewide majority.
Amendment 4 would require two things:
- A statewide majority.
- A majority in each Missouri congressional district.
A constitution sets the basic rules of government. It should not become a permanent home for every policy idea that can win one expensive statewide campaign.
Amendment 4 requires that the full text of every initiative petition be made available to every voter.
The argument for Amendment 4 is that changing the Constitution should require broad consensus, honest petitions, and clear rules.
What the Respect MO Voters Petition Would Do
Respect MO Voters presents its petition as a defense of Missouri’s current initiative petition system.
The proposal would preserve existing majority-vote and signature requirements for initiative and referendum petitions. It would also prohibit laws that weaken initiative or referendum powers.
Its biggest change is aimed at the legislature.
The initiative petition would prohibit lawmakers from changing a voter-approved initiative unless at least 80 percent of both the Missouri House and the Missouri Senate voted to send the change back to voters.
Once a measure passed, lawmakers would face an extremely high hurdle before they could even ask voters to revise it. Current law requires the legislature to use the normal process to make changes.
The current process, which the petition seeks to enshrine in the Constitution, rewards deep-pocketed special interests. Groups tied to marijuana, abortion, and other national political fights can spend heavily in a few media markets and write policy directly into the Missouri Constitution.
Without access to the full text, voters may think they are voting on broad principles while industry-friendly details slip into the Missouri Constitution.
Supporters call that a protection of the will of the people. It would also make it harder to correct drafting mistakes, unintended consequences, or policy problems, simply because a law was adopted through the initiative petition process.
Why These Two Measures Are Connected
Amendment 4 would raise the standard for citizen-led constitutional amendments. Respect MO Voters would preserve the current simple-majority framework and restrict lawmakers from changing laws adopted through initiative petition.
Amendment 4 says: Missouri’s Constitution should only change with broad support across the state.
The Respect MO Voters petition says: it should be much harder for the legislature to amend voter approved laws after the fact.
The Conservative Concern With Respect MO Voters
Lawmakers should not casually overturn what voters approve. Missouri voters have the right to use the initiative petition process.
But that concern does not answer the harder question: should one ballot campaign make it extremely difficult to revise unless 80 percent of both chambers agree to send a fix back to voters?
By requiring an 80 percent vote in both chambers before lawmakers could send changes back to voters, the initiative petition would sharply limit the legislature’s ability to respond when ballot measures create problems.
Initiative petitions can be complicated. They are often drafted by special interests, funded by national groups, and sold through expensive campaigns. Sometimes they create legal problems, budget problems, or unintended consequences.
When that happens, elected representatives need a realistic way to respond.
The Respect MO Voters petition would make that essentially impossible. It would let a one-time ballot campaign become permanent law that Missourians are stuck with forever.
Amendment 4 adds safeguards before the Constitution is changed. The Respect MO Voters petition locks in the current rules and makes future reforms harder.
Could Both Measures Pass?
Yes. If the Respect MO Voters petition qualifies for the ballot, voters could see both measures in the same election cycle.
That would be unusual. One measure would raise the standard for future citizen-led constitutional amendments. The other would protect the existing initiative system and restrict lawmakers from weakening it.
If both are passed, the result is likely to be a lengthy court fight.
Andy Bakker
Executive Director
Liberty Alliance USA
For a broader overview of the proposal, read our guide to Amendment 4 in Missouri.