We have a wonderful constitution but it was not written for a corrupted society. It did not have process to correct a corruption as deep as what occurred in the last election especially after what controls it did have were neglected for 40 years.
As others have said, there were no institutions to appeal to in our time of need. They were all corrupted.
Trump is frustrated having been robbed but trying to place blame is beneath him in my opinion.
We own the problem, We recognize it and therefore own it. We must act carefully and prudently. The state level is where we must act.
We had more contentious elections than this one that ended up with highly questionable results. Andrew Jackson had his own version of the “deep state” to deal with.