CHRIS HAYES (HOST): Today, Donald Trump finally reacted to the arrest of Coast Guard Lt. Christopher Paul Hasson, the white supremacist who had amassed an arsenal and was apparently, allegedly, plotting a domestic terror attack targeting top Democrats and prominent journalists who have criticized the president.

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Authorities say that one of Hasson's Google searches as he plotted his attack was, quote, “civil war if Trump impeached.” That is not the deranged lone fantasy of some weirdo.

Trump himself has warned ominously that the people would revolt if he were impeached, but the idea of a second civil war to defend Trump is an ever-present topic among the right-wing media, reflected regularly in headlines on conservative news sites.

And it's bandied about on TV and radio by right-wing personalities who make their money selling paranoia.

Previously:

Right-wing media have been issuing dire warnings about an impending civil war for years

Frequent Fox News guest tells Laura Ingraham “we are in a civil war;” suggests everyone buy guns to prepare for “total war”

Former White House adviser Sebastian Gorka fantasizes about aftermath of a civil war: “I am not worried which side would win”

Alex Jones and Roger Stone visited a gun range to prepare for civil war if Trump is removed from office