The only allegation of a Coup D'Etat originates from Trump, re; The House Impeachment inquiry. That inquiry, however, originates in the Constitution as a protection of the government, and the people: From the behavior in the "Quid Pro Quo," phone call.
Trend Watch: Trump: 'It Is a Coup' - 10/2/2019 | Merriam-Webster
Witnesses corroborating the blatant Abuse of Power--called for in the House Rules as Constitutionally mandated in the matter of the inquiry--is apart from a sudden arrest and incarceration from within the Executive Branch itself.
And there is no apparent reference, anywhere on the internet, to an email chain from one or more fired Trump Administration appointed ambassadors--in their roles. Those are minutes of the Republican Executive branch,
apparently being enshrined as the New Trump Republican Party.
The matter of it operating via "Coup D'Etat" not even successfully deflect from the Elaborate Planned Abuse of Power.
If truth were told--apart from the Whistle-Blower: Anyone might conclude that the entire US Post Office was in on it(?)!
"Crow, James Crow: Shaken, Not Stirred!"
("L’tribe, c’est moi(?)!"