Description of Matching Procedure

Robustness Checks

Table S1: Improvement in Balance between Treated and Untreated Cases

Table S2: Relationship between General Disagreement and Political Outcomes

Table S3: Relationship between Partisan Disagreement and Political Outcomes

Table S4: Effect of Adding the General Discussion Question to Our Original Analysis

Table S5: Substituting a “Non-Dichotomized” Measure of Disagreement

Table S6: “Horserace” Models

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