Dionne, Jr., E.J. 2016. Why the Right Went Wrong. Conservatism-From Goldwater to the Tea Party and Beyond. New York: Simon and Schuster.
Freedman, Lawrence. 2013. Strategy. A History. Oxford and New York.Oxford University Press.
Gelman, Andrew., David Park, Boris Shor, and Jeronimo Cortina. 2008, 2010. Red State, Blue State, Rich State, Poor State. Why Americans Vote the Way They Do. Expanded Edition. Princeton and Oxford: Princeton University Press.
Hetherington, Mark J., and Thomas J. Rudolph. 2015. Why Washington Won't Work Polarization, Political Trust, and the Governing Crisis. Chicago and London: The University of Chicago Press.
Kahneman, Daniel. 2011. Thinking Fast and Slow. New York:Farrar, Straus, and Giroux.
Lakoff, George. 1996, 2002. Moral Politics. How Liberals and Conservatives Think. 2nd Ed. Chicago and London: The University of Chicago Press.
Mann, Thomas E., and Norman J. Ornstein. 2012. It's Even Worse Than It Looks. How the American Constitutional System Collided with the New Politics of Extremism. New York: Basic Books.
The above books cover the matters discussed in the blog in great detail, so there will be references made from time to time.
Other material of interest:
Paul Krugman's NYT blogs and columns on politics.
Tushnet, Mark V. 2004. "Constitutional Hardball." Georgetown University Law Center.
Yglesias, Matthew. 2015. "American democracy is doomed." Vox.com