The July 2024 Trump assassination attempt was followed by lower in-group support for partisan violence and increased group unity.

The attempted assassination of Donald Trump led to widespread concern that the event would escalate political violence between U.S. partisans.

Early Salience Signals Predict Interindividual Asymmetry in Decision Accuracy Across Rewarding and Punishing Contexts.

Asymmetry in choice patterns across rewarding and punishing contexts has long been observed in behavioural economics. Within existing theories of reinforcement learning, the mechanistic account of these behavioural differences is still debated. We propose that motivational salience-the degree of bottom-up attention attracted by a stimulus with relation to motivational goals-offers a potential mechanism to modulate stimulus value updating and decision policy.

Affective polarization is uniformly distributed across American States.

US partisans view each other with increasing negativity. While many attribute the growth of such affective polarization to nationally cross-cutting forces, such as ideological partisan sorting or access to partisan media, others emphasize the effects of contextual and institutional forces. For the first time, we introduce and explore data sufficiently granular to fully map the extent of partisan animosity across the US states.

Persistent polarization: The unexpected durability of political animosity around US elections.

The scholarly literature suggests that, as elections approach, political tensions intensify, and, as they pass, tensions return to pre-election levels. Using a massive new dataset of 66,000 interviews (cross-sectional and panel), we find that animosities are durable and consistent over the course of the 2022 US election. Individuals with more exposure to the campaign tend to be more polarized, and this sentiment endures post-election.

Correcting misperceptions of partisan opponents is not effective at treating democratic ills.

Many warn that the United States is on the brink of democratic collapse, because partisan animosity, support for partisan violence, and support for undemocratic practices are on the rise. Quelling some fears, scholars have offered interventions that use messages to correct misperceptions about citizens' partisan opponents (the "out-party"). In this article, we provide evidence that the effects of these interventions are not as robust or consistent as hoped.

Uncommon and nonpartisan: Antidemocratic attitudes in the American public.

Democratic regimes flourish only when there is broad acceptance of an extensive set of norms and values. In the United States, fundamental democratic norms have recently come under threat from prominent Republican officials. We investigate whether this antidemocratic posture has spread from the elite level to rank-and-file partisans.

Effects of a US Supreme Court ruling to restrict abortion rights.

Previous research focused on popular US Supreme Court rulings expanding rights; however, less is known about rulings running against prevailing public opinion and restricting rights. We examine the impact of the Dobbs v. Jackson Women's Health Organization opinion, which overturned Roe v.

Current research overstates American support for political violence.

SignificanceRecent political events show that members of extreme political groups support partisan violence, and survey evidence supposedly shows widespread public support. We show, however, that, after accounting for survey-based measurement error, support for partisan violence is far more limited. Prior estimates overstate support for political violence because of random responding by disengaged respondents and because of a reliance on hypothetical questions about violence in general instead of questions on specific acts of political violence.