The establishment on both sides are delighted. They will declare Trump a public enemy for inciting violence and then probably prosecute him.
The GOP will feel like they've evicted him and can go back to being the happy minority party, willing and able stooges to provide pretend opposition to the dems without ever having to worry about Trump supporters again.
And the dems will be happy because they can declare insurrection and begin arresting everyone and anyone and herding them in for show trials.
Then it goes nuclear.