https://www.pbs.org/newshour/politics/pence-details-jan-6-falling-out-with-trump-in-new-memoir
"But Pence, who spent years refusing to publicly criticize his old boss, makes clear that Jan. 6, 2021, was a breaking point in which, he writes, Trump’s “reckless words had endangered my family and all those serving at the Capitol.”
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I do think part of the reason it seems like Trump had so many betrayers in his government is that you'd basically have to replace everyone in DC to get public servants not YET compromised, and then many of those would be compromised either falsely (framed) or through human failing. The tentacles of the deep state are everwhere and they have learned how to break people.