“I really think that at a certain stage there will be a kind of waiting game - what the Russians can withstand and what Europe will be ready to withstand,” RIA Novosti quotes Biden.
He also noted that he was not afraid of "cracks" in the general approaches of the West to the Russian-Ukrainian conflict.
Earlier, British Foreign Minister Liz Truss said that the West should support Ukraine in negotiations with Russia.
Vladimir Medinsky, an aide to the Russian president and head of the delegation at the negotiations with Ukraine, said that Kyiv had stopped the negotiation process with Moscow after the visit of the heads of the Pentagon and the US State Department to Ukraine.
At the same time, Russia is open to negotiations with the Ukrainian side, he said.