The coup happened on Usurpation Day, January 20, 2009.
An ineligible man was sworn in as President that EVERYONE in the District of Corruption knew at the time was not a natural born citizen. All of the crimes of the Kenyanesian Usurpation were preventable. It is the culpability of the GOP that prevents any real progress.
What is happening is the struggle to re-establish the Constitution and the rule of law.
Trump does not have nearly enough allies.
We need to correct that by Cantorizing the weasels in Congress.
I would use the date October 26, 2001. The date the Patriot Act was signed into law. I know surreptitious electronic surveillance existed before that date, but the passage of the act codified such surveillance making the spook agencies more vulnerable to political abuse.