I can absolutely tell you that the FSB are rigged up to collect as much compromising information against any target they consider to be valuable. So when Trump was there in Russia, would they have collected against him? I think the answer is yes.
Andrei SoldatovIf there was compromising material that had a shot at actually making Trump behave the way the Russians wanted him to, I would imagine it would be something financial - illegal, dirty dealings, or something with legal import.
Andrei Soldatov