Do External Threats Reduce Affective Polarization? An Experiment on Russia’s Invasion of Ukraine2026-04-01·576 字·2 分钟Polihot 政治行为 国际关系 Affective Polarization External Threats Russia-Ukraine War Priming Experiment Coordination GameJOP 88/2 pp. 526-540 2026-04-01 Original Do External Threats Reduce Affective Polarization? An Experiment on Russia’s Invasion of Ukraine