In June 2022, the U.S. Supreme Court’s Dobbs ruling overturned Roe v. Wade, reversing the nearly 50-year-old landmark decision that affirmed a woman’s constitutional right to abortion. Several months later, voters turned out in record numbers for the 2022 midterms, though a widely predicted “Red Wave” vote did not materialize. There has since been speculation that overturning Roe v. Wade played a crucial role in the midterms, generating a “Blue Tsunami” or “Roevember” driven largely by young, pro-choice women voting out of self-interest. We posit instead that group empathy was the key motivational mechanism in the link between opposition to Dobbs and voter mobilization in that election. Analyzing data from an original national survey, we find that opposition to overturning Roe v. Wade did not directly affect one’s likelihood to vote unless one is empathic toward groups in distress. Such opposition was actually demobilizing for those low in empathy. The findings indicate group empathy serves as a catalyst for people to act on their opposition to policies that harm disadvantaged groups, in this case women as a marginalized political minority losing their constitutional right to bodily autonomy and access to reproductive care.