[anonINFP]

How much reading are you willing to make time for? I've collected a very large number of links to source, research, & analysis material on Russia's ongoing active measures campaign over the last 14 months (though ironically, I still haven't gotten around to reading the recent indictment). This is a complex issue, and my perception is that a full proof of all the claims alleged about Russia's operation will require much more detail and logical inferences than most people who keep harping about "where's the proof? where's the smoking gun?" really expect. But if you want to keep the scope limited to just your a) and b), then I can probably dig up some compelling and hopefully verifiable public evidence in support of them (at least in support of your point a - for b, the only people who have metrics & data on how effective and impactful this operation has been on our country are probably the IRA, Russian intelligence services, and Cambridge Analytica. So point b is tougher for me, but I could at least point you to proof of the dark seriousness of their intent and goals). It might still be a lot of material to go over, though. Fair warning.