Trump doesn’t always have the details at his fingertips. It would have been effective had he been able to cite specific instances of states violating election laws, ballot-box stuffing, nursing home ballot harvesting, counting in secret, and Zuckerbucks used to influence the election.
It’s a preview. He could have gotten into more details, but this what they chose to show.
That is going to be a problem for him if he runs again and is asked about the 2020 election. People who followed and studied it will know what he's talking about, but that is not a majority of voters.
Instead he yelled, stamped his feet, took his ball and went home. And of course the fan boys are saying he looks “strong”.
Sometimes details are helpful, but with most of them, Jesus could be standing right there and they still won’t believe.