Burns, Alexander; Flegenheimer, Matt; Lee, Jasmine C.; Lerer, Lisa; Martin, Jonathan (January 10, 2020). "Who's Running for President in 2020?". The New York Times. ISSN0362-4331. Retrieved January 22, 2020.
Burns, Alexander; Flegenheimer, Matt; Lee, Jasmine C.; Lerer, Lisa; Martin, Jonathan (January 10, 2020). "Who's Running for President in 2020?". The New York Times. ISSN0362-4331. Retrieved January 22, 2020.