Russian Once Tied to Trump Aide Seeks Immunity to Testify Before Congress

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

.. In March, Mr. Deripaska took out newspaper ads stating that he was willing to participate in hearings before Congress after The Associated Press published a report alleging that Mr. Manafort had provided him with a plan in 2005 outlining steps to “greatly benefit the Putin government,” by influencing politics and news coverage in the United States.

.. Mr. Deripaska, whose net worth has been estimated at $5.3 billion by Forbes, has global business interests and sits atop a number of companies