It’s interesting that Trump should post things like this, does he have an endgame in mind? What he is saying is that Biden is an illegitimate President, which he is, but having the legitimate President say it really adds some, um, legitimacy to it. But, it implicates Trump as well. If Trump believed this then he had a duty to try to stop it - civil war is preferable to illegitimate government. Unless Trump has some grand plan up his sleeve, history will not judge him kindly for willfully ceding power to an illegitimate administration.