Russian oligarch asked Congress for immunity un exchange for cooperating with Trump investigation

A Russian oligarch named Oleg V. Deripaska offered to cooperate with the investigation into the relationship between the Trump campaign and Russia, specifically regarding Trump's first campaign manager, Paul Manafort. But Congress turned down the offer.

According to The New York Times:

Mr. Deripaska’s offer comes amid increased attention to his ties to Paul Manafort, who is one of several Trump associates under F.B.I. scrutiny for possible collusion with Russia during the presidential campaign. The two men did business together in the mid-2000s, when Mr. Manafort, a Republican operative, was also providing campaign advice to Kremlin-backed politicians in Ukraine. Their relationship subsequently soured and devolved into a lawsuit.

Mr. Deripaska, an aluminum magnate who is a member of the inner circle of the Russian president, Vladimir V. Putin, recently offered to cooperate with congressional intelligence committees in exchange for a grant of full immunity, according to three congressional officials, speaking on condition of anonymity because they were not authorized to discuss the issue publicly. But the Senate and House panels turned him down because of concerns that immunity agreements create complications for federal criminal investigators, the officials said.

The NYT points out that During the Obama administration the federal governmed refused to give Deripaska a business visa. He entered the US, instead, by getting a permit as a Russian diplomat from Vladimir Putin's government.

One has to wonder what does he have to say.