Oprah has to be the most-studied non-politician candidate endorser ever.
https://journals.sagepub.com/doi/abs/10.1177/1940161208321948
https://home.gwu.edu/~tim_moore/Garthwaite_Moore_JLEO.pdf
https://journals.sagepub.com/doi/abs/10.1177/1532673X18757236
🐦🔗: https://twitter.com/JohnFetterman/status/1588369911570583553
