Danchenko is Ukrainian. He did live many years in Moscow. The friends he talked to in bars exchanging gossip about Donald Trump, are also Ukrainian. Neither Danchenko nor his friends were in any position to know any details about Donald Trump, personal or governmental. The FBI knew all this when the FBI paid Danchenko to perjure himself.
Should be a great trial, as they (mostly liars no doubt) probe what a liar told liars about other liars.
Do you swear to tell the truth, the whole truth, and nothing but the truth?
No, are you kidding? What’s the point?
Danchenko was born in the Ukrainian Soviet Socialist Republic but he is a Russian citizen.