Victor Boyarkin, a close aide to the sanctioned oligarch Oleg Deripaska, is getting some unwanted attention these days.

“How did you find me here?” Boyarkin asked a TIME magazine reporter who managed to track him down at a conference in Greece.

Boyarkin, reportedly a former colonel in the GRU, is part of the constellation of intelligence officers employed by Deripaska that help him maintain his proximity to the Kremlin’s inner circle.

TIME had questions for Boyarkin about Paul Manafort, Trump’s former campaign chairman. References to Boyarkin (“Victor” and “our friend V”) were sprinkled in emails to Manafort during the 2016 presidential campaign.

“Tell V boss that if he needs private briefings we can accommodate,” Manafort wrote to his associate, Konstantin Kliminik.

Boyarkin told TIME he was talking to Manafort during the presidential campaign to collect on a debt. “He owed us a lot of money,” Boyarkin said. “And he was offering ways to pay it back.”

The fact that Trump’s campaign chairman was in debt to someone like Deripaska and being hounded for money by someone like Boyarkin shows, yet again, how deeply unqualified Trump was to be president. Trump’s best defense is that he didn’t know about any of this. The much darker, worst-case scenario is that he chose Manafort precisely because he had these sorts of connections to Russia.

Boyarkin headed up “special operations” for Deripaska, according to the Paris-based newsletter Intelligence Online. This work took him to the African country of Guinea where Rusal, Deripaska’s Russian giant aluminum concern, had a plant that was shuttered by a strike. But lately, Boyarkin’s “special projects” have involved the Trump administration.

According to Intelligence Online, Boyarkin recently returned to Deripaska’s inner circle to deal with the sanctions imposed in April 2018 by the Treasury Department on Deripaska and his companies. (Exactly what role he played isn’t clear.) Lord Barker of Battle, the chairman of Deripaska’s London-listed holding company, En+, paid the DC lobbying firm $108,500-a-month, Mercury Group, to lobby for sanctions relief.

It was money well spent. Ever since those tough sanctions were imposed on Deripaska, the Trump administration has been looking for ways to soften the blow, as I wrote for The New York Times. The Treasury recently said it intends to lift the sanctions on Deripaska’s companies in what seems like a sweetheart deal.

Boyarkin was himself sanctioned by the U.S. Treasury earlier this month “for having acted or purported to act for or on behalf of, directly or indirectly, Oleg Deripaska.” Notably, The Senate intelligence committee said the sanctions on Boyarkin “will help counter some of Russia’s malign influence efforts, and is a welcome step.” It seems the sanctions on Boyarkin appear to be part of the deal to lift the sanctions on his boss.

According to the U.S. Treasury, Boyarkin and Deripaska were both involved in providing Russian financial support to a Montenegrin political party ahead of Montenegro’s 2016 elections. A decade earlier, Manafort worked for Deripaska in Montenegro to manage a referendum campaign that ended with the country declaring its independence.

Boyarkin is a former colonel in the GRU, according to the British newspaper, The Telegraph. (Other sources describe him as a lieutenant colonel.) Boyarkin’s name shows up in the U.S. diplomatic list from the 1990s when he was posted to Washington as a Russian naval attache, often a cover for intelligence officers.

Have we learned all there is to know about Deripaska’s ties to the Trump administration?

I doubt it.