We need to understand Trumpism as a philosophical movement even better than its own adherents do, and with full interpretive sympathy, and we need to be prepared to confront it along all its philosophical axes.
The most central of these axes is Trumpism’s approach to history, because the identity of a political movement, like that of a nation, becomes fully apparent only once it possesses a self-conscious understanding of the past.
As a framework for interpreting the past, climate change denial grows logically from the core metaphysical commitments of contemporary populist nationalism in its confrontation with trans-Atlantic, cosmopolitan, individualist liberalism.
In this respect one might thus regard it as the distinctive form of anti-liberal historical thinking of our era.
Two principles of Schmitt’s writing are especially relevant to understanding the place of climate change denial in Trumpism’s historical consciousness, and they’re worth discussing at some length. Each principle links Trumpian domestic and international politics as two sides of the same philosophical coin.
The political is inviolable
First, for Schmitt a community’s ability to draw the friend-enemy distinction can—by definition—brook no conceptual or institutional restraint.
Most notably, the distinction can’t be predicated on other domains of human value, such as morals, aesthetics, or economics. Ideals from these fields may be used to enhance public feelings of opposition. Enemies are regularly portrayed as ugly, for instance—a practice at which Trump personally excels.
But the object of a community’s political dissociation is made on the basis of criteria independent from judgments about good and evil, beauty and ugliness, or profit and loss.
Liberals today regularly violate this principle. They seek to circumscribe national sovereignty within generally-applicable legal norms such as individual human dignity—consider Article I of the German Basic Law—and to restrict it through institutions like the United Nations.
Schmitt views such liberal projects not simply as naïve, but also as a recipe for social chaos at home and unrestrained, imperialistic violence abroad.