Us and Them: Foreign Threat and Domestic Polarization

Joshua A. Schwartz and Dominic Tierney

Journal of Conflict Resolution, 2025, vol. 69, issue 2-3, 352-380

Abstract: Can foreign threats reduce domestic polarization, and if so, under what conditions? This is an important question for the United States given the severity of internal division and the emergence of China as a potentially unifying external peril. We offer a novel theoretical argument about when external danger will rally Americans based on the nexus between the vividness of foreign danger and bipartisan elite agreement about the threat. We test our theory through a series of pre-registered survey experiments. We find that vivid foreign threats, in isolation, do not reduce domestic polarization and therefore the danger from China alone may not be sufficient to spur domestic unity. However, vivid foreign threats in combination with policymaker agreement about the threat does significantly reduce domestic polarization. This reduction in polarization comes at a cost: increased public willingness to violate use of force norms against China. Overall, our study establishes that foreign peril can reduce domestic polarization under certain circumstances, and demonstrates that elite reactions to foreign threats are highly important in shaping wider domestic effects.

Keywords: polarization; domestic politics; foreign threat; elite cues; vividness; nuclear weapons; in-group bias; affective polarization (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:sae:jocore:v:69:y:2025:i:2-3:p:352-380

DOI: 10.1177/00220027241246539

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