The six men — three Russians, three Italians — gathered beneath the spectacular painted glass ceiling in the hotel lobby last October had their eyes on history too. Their nominal purpose was an oil deal; their real goal was to undermine liberal democracies and shape a new, nationalist Europe aligned with Moscow.

BuzzFeed News has obtained an explosive audio recording of the Metropol meeting in which a close aide of Europe’s most powerful far-right leader — Italian Deputy Prime Minister Matteo Salvini — and the other five men can be heard negotiating the terms of a deal to covertly channel tens of millions of dollars of Russian oil money to Salvini’s Lega party.

The recording reveals the elaborate lengths the two sides were willing to go to conceal the fact that the true beneficiary of the deal would be Salvini’s party — a breach of Italian electoral law, which bans political parties from accepting large foreign donations — despite the comfort with which he and Europe’s other far-right leaders publicly parade their pro-Kremlin political sympathies.