Eight weeks of the online fight over Missouri’s Amendment 3, set beside the polls, ahead of Nov 3.
Key finding: On X, the Yes side owned the conversation. On Facebook, Instagram, YouTube and Bluesky, No did. In the polls, it’s tied 43 to 43.
About this series
Ballot Signals is a daily narrative intelligence series on 2026’s biggest ballot fights. Each day until Election Day, we publish a Rolli IQ report on one measure and set it beside the latest public polling. On Nov 4, we check the signals against the results. This is Report 3.
| Date | Measure and what it does | Our question |
|---|---|---|
| Thu Oct 29 | AI data centers Local votes to ban, pause or require approval for new data centers. |
Where is the opposition going? |
| Fri Oct 30 | California Prop 40 A one-time 5% tax on the wealth of Californians worth over $1 billion, mostly for health care. |
Yes won the feed while it lost ground in the polls. |
| Sat Oct 31 | Missouri Amendment 3 (this report) Would repeal the abortion-rights amendment voters passed in 2024, ban most abortions with exceptions, and ban gender-transition procedures for minors. |
The polls are tied. Where is each side’s message landing? |
| Sun Nov 1 | Montana I-194 Would bar corporations, unions and other groups from spending to influence Montana elections, a test of the Citizens United ruling. |
There is no public poll. What does the conversation show? |
| Mon Nov 2 | California Prop 39 Would require voters to show ID, add ID numbers to mail ballots, and check voters’ citizenship. |
Voter ID polls well, yet the measure trails 42 to 51. Why the gap? |
| Wed Nov 4 | The results What the online signals showed, next to what voters decided. |
Did the signals hold? |
What Amendment 3 would do
In 2024, Missouri voters approved a constitutional right to abortion, 51.6% to 48.4%. This year’s Amendment 3, placed on the ballot by the legislature, would repeal it. It would ban abortion except to protect the life of the mother and, up to 12 weeks, in cases of rape and incest, require parental consent for minors, and ban gender-transition procedures for minors. Missouri is the first state to vote on repealing a voter-approved abortion-rights amendment.
In one page
Polls tell you how close it is. The conversation shows where each side’s message is landing, and where it isn’t.
It is also a quiet fight online. Across the same platforms, the Missouri conversation drew roughly a tenth of the engagement California’s Prop 40 drew, even though this race is tied and the stakes are historic.
Same fight, two rooms
Which side you think is winning depends on where you scroll. In October, 83% of the interactions on the most popular X posts went to the Yes side. On Facebook, Instagram, YouTube and Bluesky, 8 in 10 or more went to No. Sen. Josh Hawley was the biggest single voice on X, with about 4 in 10 of all Yes-side engagement there. Facebook was led by the official No campaign, Stop the Ban. Instagram was led by creators urging a No vote. On YouTube, the No side’s voices were creators and doctors, while the Yes side’s were churches and Catholic bishops, alongside a few explainer channels. This shows where each side’s audience is most active, not who is winning.
On X, Yes surged. In the polls, it lost its lead.
Yes led 47 to 40 in SLU’s February poll. By August it was 43 to 44, and the latest poll, Missouri Scout/Remington on Oct 14–15, has it tied at 43 with 14% undecided. On X, the Yes side’s share of top engagement went the other way, from 38% in early September to 59% in late September and 82% in late October. That surge is not just one senator: without Hawley’s posts, Yes still held about 72% of top X engagement in October. These are different measures, so the point is the direction. It is the same pattern we found on California’s Prop 40: the side that took over the feed did not gain in the polls.
| Poll | Field dates | Yes | No | Undecided |
|---|---|---|---|---|
| SLU/YouGov (likely voters) | Feb 9–22 | 47% | 40% | 12% |
| SLU/YouGov (likely voters) | Aug 13–24 | 43% | 44% | 13% |
| Missouri Scout/Remington (likely voters) | Oct 14–15 | 43% | 43% | 14% |
SLU’s February results are shown as first released; SLU later reweighted them to 50 to 39. Either way, the Yes lead disappeared by August.
Yes made its case. No spent a third rebutting it.
On X, Yes-side posts led with abortion and protecting “life” (46% of engagement) and with banning transgender surgeries for minors (36%). The Yes campaign’s first TV ad focused on transgender procedures and did not mention abortion. No-side posts spent 37% of their engagement rebutting that claim, mostly by pointing out that Missouri law already bans gender-transition surgery for minors. Only 21% went to the No side’s own central argument: that voters already decided this in 2024.
“You already voted” lives on Facebook
That 2024 argument is where the No campaign puts its weight, mostly not on X. On Facebook, 78% of No-side engagement went to posts invoking the 2024 vote. On Instagram, nearly every top No-side post did. Stop the Ban’s Facebook page alone drove most of the No side’s engagement there.
The confused voter
With 14% undecided, the voters who matter most may be the ones who are unsure what their vote does. The number itself is a trap: in 2024, a Yes vote on Amendment 3 protected abortion rights. In 2026, a Yes vote on Amendment 3 would repeal them. A court had already ordered the ballot language rewritten in 2025 to make clear the measure repeals the 2024 amendment. Online, that confusion is visible. A first-time voter on r/missouri wrote that the ballot summary reads “like I should agree with it, all cause of how its worded,” and the post drew 820 interactions. A Missouri podcast page on Facebook urged voters to stop listening to the spin and “read the actual ballot language.” Both campaigns are spending their final days explaining what Yes and No mean.
Yes ran on hope and fear. No ran on anger.
Rolli IQ labels the emotion in each post. On the most-engaged X posts, Yes-side engagement was 67% happiness and 25% fear. Hawley’s “vote yes” posts read as happiness; his posts about transgender surgeries read as fear. No-side engagement was 80% anger. That is the mirror image of Prop 40, where the Yes side ran on anger.
No has the money. Yes has X.
Stop the Ban reported more than $27 million raised by mid-October, with the ACLU, Planned Parenthood and The Fairness Project among its largest donors. The Yes committee, Her Health, Her Future, reported about $5.3 million, plus a separately reported $2.9 million from an allied nonprofit. The No side has raised more than three times as much, yet the Yes side drew about five times the engagement on X in October.
Five moves before Nov 3
For campaigns and communicators, on either side: treat it as a true toss-up, don’t read X as Missouri, recognize that whoever sets the frame gets the airtime, remember that abortion rights passed by about 3 points in 2024, and watch the mood.
Coming next
How to read a signal
A signal is not a poll. Online share is not vote share, and we set every finding beside public polling. Ballot Signals takes no side on any measure. What a signal can show is which arguments are gaining, how people feel about them, and who is carrying them.
Want this read on your issue? Send us a topic and we’ll show you what Rolli IQ finds. Talk to Rolli →
Method and how sure we are. Rolli IQ, public posts from Sep 8 to Oct 30, 2026, across X, Reddit, Threads, Bluesky, YouTube, Facebook and Instagram. X was searched in four two-week windows on its own; Reddit, Threads and Bluesky in three windows; YouTube, Facebook and Instagram once each for the full period. Posts about Florida’s unrelated Amendment 3 were excluded. Side shares cover the most-engaged posts that take a side. On X, 230 top posts were coded by side (the most-engaged by hand, the rest by keyword) and by argument (by keyword). On other platforms, posts were coded by their stated position. Instagram shares rest on a handful of top posts, and YouTube engagement was small (about 6,300 interactions). Emotion labels are Rolli IQ’s own, on 41 top X posts; shares exclude posts with no emotion detected. These are the most-engaged public posts, not a sample of voters. Polls: SLU/YouGov (Feb 9–22 and Aug 13–24, 2026), Missouri Scout/Remington (Oct 14–15). Money: Missouri Ethics Commission filings as reported by KCUR, KY3 and the Missouri Independent, Oct 15–16. 2024 result: Missouri Secretary of State. Private individuals are described, not named.
