In the 1990s Russia basically exported as many criminals to the USA as the USA was prepared to tolerate. This was a wave of mass infiltration of both the Russian Mafia and the KGB agents nested within those organizations, as the skill set is interchangeable. And who else was in that mix on a questionable visa? Melania "Knauss". Of course there were legitimate migrants at that time as well, so what makes Melania stand out is her relationship to multiple organized crime figures. She was basically trafficked into the USA in this period, and worked for a very interesting figure, Paollo Zampolli, whose name, surprisingly, hasn't been mentioned in all the Russiagate despite the fact he is a very influential and questionable person
https://en.wikipedia.org/wiki/Paolo_Zampolli. One must ask, how one goes from pimp (sorry, Modelling Agency manager), to senior diplomat for a Caribbean tax haven like Dominica
https://en.wikipedia.org/wiki/Dominica?
Of course all this is going on at a time when the Russian Mob is cutting deals in NYC with the old money Italian Mob, and who is in the middle of it? Why, our present POTUS. It is also interesting that Melania is the third of 3 wives, two of whom have come from Eastern Europe, and specifically from former Soviet puppet states.