Hate Speech in the Political Discourse on Social Media: Disparities Across Parties, Gender, and Ethnicity

TL;DR

This study empirically examines how hate speech in Twitter replies to U.S. Congress members varies based on politicians' party, gender, and ethnicity, revealing significant disparities influenced by personal characteristics and sentiment.

Contribution

It provides a novel empirical analysis of hate speech disparities across political, gender, and ethnic lines using machine learning and hierarchical regression models.

Findings

Hate speech is more prevalent in replies to persons of color and women.

Negative sentiment in source tweets correlates with increased hate speech in replies.

Disparities in hate speech depend on party affiliation, with different patterns for Democrats and Republicans.

Abstract

Social media has become an indispensable channel for political communication. However, the political discourse is increasingly characterized by hate speech, which affects not only the reputation of individual politicians but also the functioning of society at large. In this work, we empirically analyze how the amount of hate speech in replies to posts from politicians on Twitter depends on personal characteristics, such as their party affiliation, gender, and ethnicity. For this purpose, we employ Twitter's Historical API to collect every tweet posted by members of the 117th U.S. Congress for an observation period of more than six months. Additionally, we gather replies for each tweet and use machine learning to predict the amount of hate speech they embed. Subsequently, we implement hierarchical regression models to analyze whether politicians with certain characteristics receive more hate speech. We find that tweets are particularly likely to receive hate speech in replies if they are authored by (i) persons of color from the Democratic party, (ii) white Republicans, and (iii) women. Furthermore, our analysis reveals that more negative sentiment (in the source tweet) is associated with more hate speech (in replies). However, the association varies across parties: negative sentiment attracts more hate speech for Democrats (vs. Republicans). Altogether, our empirical findings imply significant differences in how politicians are treated on social media depending on their party affiliation, gender, and ethnicity.