Oleg Kalugin

And That's not just speculation on my part.

I talked to two former members of the KGB, General Oleg Kalugin, who was head of counterintelligence for the KGB, now lives outside of D.C., And Yuri Shvets, who was a major in the KGB.

And they both told me it.

And so did a former United States attorney for the Eastern District of New York.

An asset is generally a source who may or may not even know that they're being used for information or influence.

Oleg Kalugin, a former KGB general who has had a second career consulting to Western intelligence and appearing on Western TV programs, has said that he is aware of the KGB having collected material on Trump over the years.

But he said that he does not know whether that material was ever used to recruit or blackmail him.

Carl Cunliffe, an academic at Aberystwyth University, has argued that Trump fits a different historical pattern.