Democratic presidential nominee Kamala Harris recently announced that she would favor eliminating the U.S. Senate’s filibuster rule to codify the former rule of Roe v. Wade (1973) that treated abortion as a civil right. Roe was overruled by the Supreme Court in Dobbs v. Jackson Women’s Health Organization (2022), returning the issue to the state governments to decide. Eliminating the filibuster for ordinary legislation, as Harris proposes, is enormously dangerous, as it would further transform the American political system into a purely majoritarian one that would empower temporary, bare...