There were those vague rumors about Ted Cruz desiring to copulate with a rat (never did understand that one) or having been seen with five hookers or something. About as vague as the PTrump Russia insinuation. But could have been a dossier they had concocted on him. But still probably with a Russian connection as they seemed determined to prosecute Russia militarily while she is (relatively) weak and isolated.
All they had to do was have Fusion GPS send Marina to Cruz HQ instead of Trump Tower; their scams are one size fits all .. and therein I’ve wondered if they may have blown it - by using the likes of Halper, they have + used known sources and methods - should make connecting the dots easier for the white hats.