This spring, a British lord with deep ties to the governing Conservative Party and a reputation as a do-gooder environmentalist arrived in Washington on an unlikely mission: to save the business empire of Oleg Deripaska, one of Russia’s most infamous oligarchs.
Mr. Deripaska was in deep trouble. In April, the Trump administration had announced sanctions on oligarchs close to President Vladimir V. Putin, and on their companies, as punishment for Russian interference in the 2016 presidential election and for other hostile acts. A billionaire who controls the world’s second-largest aluminum company, Mr. Deripaska faced possible ruin.
Portrayed as little more than a thug by his critics and suspected by United States officials of having ties to Russian organized crime, Mr. Deripaska, 50, has spent two decades trying to buy respect in the West. London welcomed him; Washington still mostly has not. Successive administrations have limited his ability to travel to the United States.
Even Mr. Putin was unable to resolve the situation when he interceded personally with Presidents George W. Bush and Barack Obama on Mr. Deripaska’s behalf.
But with so much on the line this time, Mr. Deripaska’s allies are now fighting back aggressively, mobilizing a vast influence machine on both sides of the Atlantic in an all-out effort to undo the sanctions against his companies before they take full effect.
The campaign to help Mr. Deripaska is playing out against an especially sensitive political backdrop. Any step by the administration that is seen as favorable to a powerful Russian is sure to draw scrutiny at a time when the special counsel, Robert S. Mueller III, is continuing his investigation into Russian interference in the 2016 election.