The Russian intelligence community has always been sly as foxes.  If you cannot bribe 'em, find some way of blackmailing 'em.  Catching foreign businessmen in East Bloc honey traps has been and I suspect still is a technique used by the Soviets, their successors and the cooperating satellite countries.  Eastern European leadership can be described by a few adjectives, sly, clever and paranoid.  There's a reason Chess is the favorite  game in Eastern Europe, it requires the ability to think beyond the next move.  If the Soviets caught Trump in a honey pot anytime during his past travels, they've kept the tapes.  They will use this leverage.  What does Putin want? Not the breakup of NATO.  He wants NATO back the heck off his doorstep, ie. we just announced moving 3000+ more US troops to Poland.  The Russians lost 27 million people in the last war, they have reason to be paranoid about foreign troops on their borders.