1. Abramowitz, Alan I. 2013. The Polarized Public? Why Our Government Is So Dysfunctional. New York: Pearson Longman.
2. Associated Press. 2011. “Obama Signs 3 Trade Deals, Biggest Since NAFTA.” Fox News, October 21. Available at: http://www.foxnews.com/politics/2011/10/21/obama-signs-3-trade-deals-biggest-since-nafta.html.
3. BBC. 2020. “What Has Donald Trump Actually Achieved on Trade?” January 19. Available at: https://www.bbc.com/news/business-51055491.
4. Bowling, Cynthia J., Jonathan M. Fisk, and John C. Morris. 2020. “Seeking Patterns in Chaos: Transactional Federalism in the Trump Administration’s Response to the COVID-19 Pandemic.” American Review of Public Administration 50 (6–7): 512–518.
5. Congressional Research Service. 2019. “Federal Grants to State and Local Governments: A Historical Perspective on Contemporary Issues.” Prepared by Robert Jay Dilger. Washington, DC: CRS.