Your last paragraph probably says it all in terms of Republicans. I for one would love to know what Trump has on Lindsey Graham, who was a Trump basher until one fine day that he went golfing with Trump. That one incident deserves its own investigation.
I'm hoping that the reason nothing has happened at the federal level is that Biden's team is actively working on a case, which takes time, while Biden focuses on getting his two big bills delivered. I am hopeful that once that happens, we start to see some dominoes fall.
And of course, New York State is doing its thing.