Yoni Appelbaum in The Atlantic:
Democracy depends on the consent of the losers. For most of the 20th century, parties and candidates in the United States have competed in elections with the understanding that electoral defeats are neither permanent nor intolerable. The losers could accept the result, adjust their ideas and coalitions, and move on to fight in the next election. Ideas and policies would be contested, sometimes viciously, but however heated the rhetoric got, defeat was not generally equated with political annihilation. The stakes could feel high, but rarely existential. In recent years, however, beginning before the election of Donald Trump and accelerating since, that has changed. “Our radical Democrat opponents are driven by hatred, prejudice, and rage,” Trump told the crowd at his reelection kickoff event in Orlando in June. “They want to destroy you and they want to destroy our country as we know it.” This is the core of the president’s pitch to his supporters: He is all that stands between them and the abyss.
In October, with the specter of impeachment looming, he fumed on Twitter, “What is taking place is not an impeachment, it is a COUP, intended to take away the Power of the People, their VOTE, their Freedoms, their Second Amendment, Religion, Military, Border Wall, and their God-given rights as a Citizen of The United States of America!” For good measure, he also quoted a supporter’s dark prediction that impeachment “will cause a Civil War like fracture in this Nation from which our Country will never heal.” Trump’s apocalyptic rhetoric matches the tenor of the times. The body politic is more fractious than at any time in recent memory. Over the past 25 years, both red and blue areas have become more deeply hued, with Democrats clustering in cities and suburbs and Republicans filling in rural areas and exurbs. In Congress, where the two caucuses once overlapped ideologically, the dividing aisle has turned into a chasm.