Former US presidential envoy Steve Witkoff advised senior Kremlin official Yuri Ushakov on how to propose a Ukraine plan to Donald Trump, including setting up a call with Trump before Ukrainian President Volodymyr Zelenskiy’s visit.
Source: https://www.bloomberg.com/news/articles/2025-11-25/witkoff-advised-russia-on-how-to-pitch-ukraine-plan-to-trump