I believe Congress is on recess but it’s reported Nancy told Intelligence committee members to stay behind and everyone else be prepared to return promptly when called.
Schiff's committee is also staying in DC. I think they already issued 3 subpoenas last night?
Main thing is collecting the intel, gathering all the evidence through their current power that the WH and DOJ can not stonewall. This is the lining-up-the-fucks phase. I think the timing is very important now because they need to grab whatever they can ASAP, before Trump's lawyers can get ahead of the next targets of investigation. I guess you don't want them to know as much as you know, but you need to act with haste.
I'm not sure how they get the MBS and Putin calls off of the classified server, but Congress has all power to get those if they ask for it, as far as I understand. I am not sure if Trump will destroy them, if he even can(?), but I imagine that he will try and if he does, that's 2 counts each of obstruction, especially if the record exists, which I'm sure it does?
From day one, I absolutely suspected Trump traded Kashoggi--either any kind of sanctions in response, or even prior-knowledge and even assistance in the murder (I actually think this is possible--I believe Kashoggi had sources and a lot of his work involved the Kushner-MBS-SA relationships)--for something that he wanted from MBS; or more likely that Kushner wanted. This shit right here....holy crap what was on that phonecall.
Putin is most likely Trump agreeing to remove funds from joint defense in Eastern Europe and such and such, promises from Putin to let his Trump tower go forward, in some uncertain language, so forth and so forth. Just some boring, light treason. Not the crazy murder treason like with MBS.