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2. Ahn, T. H., R. Huckfeldt, and J. B. Ryan. 2014. Experts, Activists and Democratic Politics: Are Electorates Self-Educating? New York: Cambridge University Press.
3. American National Elections Studies (ANES). 2017. ANES Times Series Study. Also available at https://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/36824#.
4. American National Election Studies (ANES). 2021a. ANES 2020 Social Media Study. American National Election Studies. Stanford University and the University of Michigan, November 18, 2021. Also available at https://electionstudies.org/data-center/2020-social-media-study/.
5. American National Election Studies (ANES). 2021b. ANES 2020 Exploratory Testing Survey. Stanford University and the University of Michigan. Also available at https://electionstudies.org/data-center/2020-exploratory-testing-survey/.