The Role of Follow Networks and Twitter's Content Recommender on Partisan Skew and Rumor Exposure during the 2022 U.S. Midterm Election

Fuente: arXiv
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Main Authors: Duskin, Kayla, Schafer, Joseph S., Efstratiou, Alexandros, West, Jevin D., Spiro, Emma S.
Format: Preprint
Published: 2025
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author Duskin, Kayla
Schafer, Joseph S.
Efstratiou, Alexandros
West, Jevin D.
Spiro, Emma S.
author_facet Duskin, Kayla
Schafer, Joseph S.
Efstratiou, Alexandros
West, Jevin D.
Spiro, Emma S.
contents Social media platforms shape users' experiences through the algorithmic systems they deploy. In this study, we examine to what extent Twitter's content recommender, in conjunction with a user's social network, impacts the topic, political skew, and reliability of information served on the platform during a high-stakes election. We utilize automated accounts to document Twitter's algorithmically curated and reverse chronological timelines throughout the U.S. 2022 midterm election. We find that the algorithmic timeline measurably influences exposure to election content, partisan skew, and the prevalence of low-quality information and election rumors. Critically, these impacts are mediated by the partisan makeup of one's personal social network, which often exerts greater influence than the algorithm alone. We find that the algorithmic feed decreases the proportion of election content shown to left-leaning accounts, and that it skews content toward right-leaning sources when compared to the reverse chronological feed. We additionally find evidence that the algorithmic system increases the prevalence of election-related rumors for right-leaning accounts, and has mixed effects on the prevalence of low-quality information sources. Our work provides insight into the outcomes of Twitter's complex recommender system at a crucial time period before controversial changes to the platform and in the midst of nationwide elections and highlights the need for ongoing study of algorithmic systems and their role in democratic processes.
format Preprint
id arxiv_https___arxiv_org_abs_2509_09826
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Role of Follow Networks and Twitter's Content Recommender on Partisan Skew and Rumor Exposure during the 2022 U.S. Midterm Election
Duskin, Kayla
Schafer, Joseph S.
Efstratiou, Alexandros
West, Jevin D.
Spiro, Emma S.
Social and Information Networks
Computers and Society
Social media platforms shape users' experiences through the algorithmic systems they deploy. In this study, we examine to what extent Twitter's content recommender, in conjunction with a user's social network, impacts the topic, political skew, and reliability of information served on the platform during a high-stakes election. We utilize automated accounts to document Twitter's algorithmically curated and reverse chronological timelines throughout the U.S. 2022 midterm election. We find that the algorithmic timeline measurably influences exposure to election content, partisan skew, and the prevalence of low-quality information and election rumors. Critically, these impacts are mediated by the partisan makeup of one's personal social network, which often exerts greater influence than the algorithm alone. We find that the algorithmic feed decreases the proportion of election content shown to left-leaning accounts, and that it skews content toward right-leaning sources when compared to the reverse chronological feed. We additionally find evidence that the algorithmic system increases the prevalence of election-related rumors for right-leaning accounts, and has mixed effects on the prevalence of low-quality information sources. Our work provides insight into the outcomes of Twitter's complex recommender system at a crucial time period before controversial changes to the platform and in the midst of nationwide elections and highlights the need for ongoing study of algorithmic systems and their role in democratic processes.
title The Role of Follow Networks and Twitter's Content Recommender on Partisan Skew and Rumor Exposure during the 2022 U.S. Midterm Election
topic Social and Information Networks
Computers and Society
url https://arxiv.org/abs/2509.09826