[dragonwriter]

> How about 'attempt to undermine the government'? That is much more accurate than coup.

No, attempted coup (specifically, attempted self-coup) is much more accurate.

> Words have meanings

Yes, they do. And the precise political science terms for the coordinated attempts by the 45th President and his allies to extend his powers beyond their lawful duration by extralegal means is “self-coup” or “auto-coup” (in the original French, “autogolpe”), which is a form of coup carried out by or on behalf of the existing leader.

> and using the words inaccurate/the wrong meanings is saying one thing but meaning another, and the word for that is lying.

Yes, that is exactly what you are doing when you explicitly refuse to use the correct term in attempt to minimize the act.