Last week, YouGov, in conjunction with St. Louis University, released the results of a recent poll of over 900 likely Missouri voters. The poll contained a question on Missouri’s Amendment Three, which would remove the right to an abortion from Missouri’s constitution and prohibit gender transition procedures for minors.
The results indicate that Amendment Three is down by one percentage point, with 43 percent in support, 44 percent opposed, and 13 percent undecided.
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Overall, this poll provides mixed news for Missouri pro-lifers. There is a body of research that shows that support for ballot questions falls as election day draws near. This appears to be the case with Amendment Three, as support has fallen by seven points since the most recent YouGov/St. Louis University poll in February 2026. Furthermore, most undecided voters usually end up opposing ballot questions.
That said, the poll also contains some good news. First, the amendment is polling better than expected among certain demographic groups. The results indicate that pluralities of non-whites and pluralities of voters between the ages of 30 and 44 support the amendment. Furthermore, the amendment is underperforming among traditionally pro-life demographics including the elderly and low-income earners. As such, pro-lifers might be able to make up some ground between now and election day.
Of course, it is never wise to read too much into the results of any single poll. Furthermore, this poll was very long and contained questions about a number of political figures, elections, and policy issues. By the time respondents were asked about Amendment Three, some might have been tired or distracted. Regardless, this poll shows that Show Me State pro-lifers still have a real chance to prevail on election day.
LifeNews.com Note: Dr. Michael New is a professor at Ave Maria University. He is a former political science professor at the University of Michigan–Dearborn and holds a Ph.D. from Stanford University. He is a fellow at Witherspoon Institute in Princeton, New Jersey.
