This is waaay beyond some silly tower in Moscow, or some pee-pee tape. This is either about billions of Rubles, underaged girl tapes, Trump pillow biting tapes, the existence of Novichok or SHARKS! fyi, Trump very afraid of sharks.
Sweet set up for Putin - with no witnesses or records he can claim any number of agreements and trump has so little credibility that no one will ever be sure what, if any of it is true.