Trump as cause and, more importantly, symptom
By 
To follow up on Paul’s post below, in summarizing and expanding on the themes of his new book, Adam Serwer notes that the Republican Party’s fundamental opposition to democracy precedes Trump and will succeed him:
Donald Trump has claimed credit for any number of things he benefited from but did not create, and the Republican Party’s reigning ideology is one of them: a politics of cruelty and exclusion that strategically exploits vulnerable Americans by portraying them as an existential threat, against whom acts of barbarism and disenfranchisement become not only justified but worthy of celebration. This approach has a long history in American politics. The most consistent threat to our democracy has always been the drive of some leaders to restrict its blessings to a select few.
This is why Joe Biden beat Mr. Trump but has not vanquished Trumpism. Mr. Trump’s main innovation was showing Republicans how much they could get away with, from shattering migrant families and banning Muslim travelers to valorizing war crimes and denigrating African, Latino and Caribbean immigrants as being from “shithole countries.” Republicans have responded with zeal, even in the aftermath of his loss, with Republican-controlled legislatures targeting constituencies they identify either with Democrats or with the rapid cultural change that conservatives hope to arrest. The most significant for democracy, however, are the election laws designed to insulate Republican power from a diverse American majority that Republicans fear no longer supports them. The focus on Mr. Trump’s — admittedly shocking — idiosyncrasies has obscured the broader logic of this strategy.
Trump’s critical role is in urging Republicans to follow their various Calhounite logics to their logical conclusion. But they were already the Party of Calhoun while he was just a reality TV host.
Our interview with Adam is here if you missed it.