"Part III surveys expressions of this “common-sense” understanding in the popular media and the academy, where Roe is regularly invoked as the sole and sufficient cause of political polarization around abortion. The history of abortion conflict in the years before Roe offers a rich counterpoint as it illustrates motives for conflict emanating from institutions other than the Court. Attuned to these alternative institutional bases for conflict over abortion, we can pick out features of the post-Roe landscape that raise deep questions about the sufficiency of Court-centered accounts of backlash and confront a series of puzzles about the institutions and actors that have helped make Roe matter as it has. Of course, no history of the pre-Roe period can settle the story of Roe’s reception. But it can unsettle that story, as our history does. If we are to better understand Roe’s role in causing political polarization, we need a history that attends to the different institutions that distinctively contributed to the abortion conflict—including the national political parties in a realignment contest. Only with such history can we look to Roe to teach us about the prospects and limits of judicial review."