Recently, several new books (The Right by Matthew Continetti; Partisans by Nicole Hemmer; and American Psychosis by David Corn) have been published that make precisely this point: the Republican Party had begun its tilt toward fascism decades ago. Of course, even without the objective assessment of the media, the threat to American democracy posed by the Republican Party should have been evident. Beginning in 2001, Rick Perlstein wrote four books (Before the Storm; The Invisible Bridge; Nixonland; and Reaganland) that described the faults within the Republican Party that would eventually break it.
The critical question is why many Democrats, people in the mainstream media, and other observers were oblivious to the evidence that something was seriously wrong with the Republican Party. And does this attempt at normalizing the overthrow of our democracy make it more likely that there will be other attempts?