One does wonder what sort of hold Putin has over trump.
There is an interesting article on Politico:-

The most revealing section concerned kompromat.
The document asked for: “Compromising information about subject, including illegal acts in financial and commercial affairs, intrigues, speculation, bribes, graft … and exploitation of his position to enrich himself.” Plus “any other information” that would compromise the subject before “the country’s authorities and the general public.” Naturally the KGB could exploit this by threatening “disclosure.”
Finally, “his attitude towards women is also of interest.” The document wanted to know: “Is he in the habit of having affairs with women on the side?”

https://www.politico.eu/article/donald-trump-russia-the-hidden-history-of-trumps