Posse Comitatus
Contrary to Liz Cheney’s statements, President Trump offered 20,000 National Guard troops to help keep order on Jan 6, several days prior to the rally. By law, he could not deploy troops within the United States without a request for assistance by local authorities.
Written offers were sent to the Mayor of DC and the Capitol Police Chief, both of whom refused the offer.
Statements made by Cheney, and here, that Trump should have deployed the National Guard on his own were incorrect, as he did not have the authority to do so.
So, that pretty much puts the lie to claims Trump wanted an insurrection.