The Kremlin is rejecting reports that President Vladimir Putin spoke last week with President-elect Donald Trump about the war in Ukraine, and a spokesman for Trump refused to comment on what he called his “private calls” with world leaders.

For the first time, five current and former Russian officials outlined to Reuters the Kremlin’s potential terms for a Trump-brokered peace deal.

Mike Rounds, the main ally of President-elect Donald Trump in the Senate, opposed negotiations on a peace agreement between Russia and Ukraine. He said that the Kremlin could not be trusted, reports Politico.

"As much as I would like to believe we can negotiate with a tyrant, I suspect we may be deceiving ourselves," Sen. Mike Rounds said. Rounds also said he wished the U.S. had sent more weapons to Kyiv.