Donald Trump’s pledge to end Russia’s war in Ukraine is doomed to failure if the US president-elect does not involve broader talks on Moscow’s security concerns, an influential hardliner close to the Kremlin has warned.

Konstantin Malofeyev, a Russian tycoon who is subject to western sanctions, told the Financial Times that President Vladimir Putin was likely to reject a peace plan proposal by Trump’s recently nominated special envoy for the conflict, Keith Kellogg.

“Kellogg comes to Moscow with his plan, we take it and then tell him to screw himself, because we don’t like any of it. That’d be the whole negotiation,” Malofeyev said in an interview at a luxury resort in Dubai. “For the talks to be constructive, we need to talk not about the future of Ukraine, but the future of Europe and the world.”