re: what issues did Russia successfully change the minds of Americans to get trump elected?

You are assuming that they tried to influence the election for Trump, when it is clear that they already had a working relationship with "her". U1, $500K for a speech, the dossier. Why would they want Trump? The only influence attempt I am aware of was Russia spending $100K in advertising on the web - much less than Pillsbury spends trying to get people to eat Poppin' Fresh. Are you eating Poppin' Fresh? I'm not. I expect the Russians did not influence me if Pillsbury didn't.