The persistence of affective polarization in times of security threats: Evidence from post-October 7 Israel
Dr. Omer Yair
Institute for Liberty and Responsibility, the Lauder School of Government, Diplomacy and Strategy, Reichman University
January 7, 2026 at 10:15-11:45
Hybrid event – Room 1013, Hamadrega building, University of Haifa and Via Zoom
Abstract
How persistent is affective polarization, and does it respond to extreme security threats? While one line of research suggests that war dampens internal strife, recent work has emphasized long-term continuity in partisan affect even following extreme violent events. In this paper, we provide evidence from the Israeli case, testing whether partisan animosity changed following the October 7, 2023, attack and the ensuing war in Gaza. We use both panel and cross-sectional data to examine whether affective evaluations of rival ideological groups improved once the war began. In contrast to common expectations, affective polarization proves to be highly persistent, even in the face of extreme events: measured with both thermometer and social distance items, it remains stable throughout the time period we examine. We also found minor differences between rightists and leftists, with the latter slightly improving their attitudes toward the opposition, unlike the former. We conclude by discussing the implications of our findings for the affective polarization literature.
Omer Yair is a research associate at the Institute for Liberty and Responsibility at the Lauder School of Government, Diplomacy and Strategy at Reichman University. His research interests include political behavior, public opinion, political psychology, and Israeli politics. His current studies address, inter alia, affective polarization and belief in conspiracy theories. In his studies, he mostly uses experiments and survey research