14. Levitsky & Ziblatt, supra note 7.
15. The authors illustrate this thesis in the American context with the norm violation and counter-norm violation that went on in America from Newt Gingrich’s arrival in 1978 to the end of the George W. Bush Presidency. Id. at 146-57.
16. Id. at 101-102.
17. Id. at 106. The authors also note another base norm, mutual toleration. Id. at 102. But this norm turns out to be closely tied to forbearance. It means that my side will practice forbearance as long as your side does too.
18. Id. at 207-14.
19. Id. at 215.
20. Patrick Gavin, Matthews book: O’Neill, Reagan bond, Politico (Sept. 30, 2013, 10:16 PM), www.politico.com/story/2013/09/chris-matthews-book-tip-and-the-gipper-when-politics-worked-097585 [perma.cc/LZ53-7L2J].
21. Levitsky & Ziblatt, supra note 7, at 112.