We’re seeing that now, in the “Hamilton” farrago. You can’t speak out, even gently, against Republicans in a theater.
Acting like adults? No evidence of that, even in victory; how can you imagine they would do so in defeat?
By the way, bullshit. The death threats against Democrats began the night of the election.
Yes . . . but not without historical reason! 
CMC fnord!
Grin! I’ve read, but never seen, Our American Cousin. It’s a jolly fun bit of Victoriana!
They were certainly active in the running of the Department of Justice at the time.
Also, emails sent from the White House via the RNC servers still likely fall under the Presidential Records Act.
FOIA requests, no. Congressional subpoenas, yes.
If they ever decide to try this, it will certainly be acting.