Washington, Aug. 6 -- President Donald Trump's trusted foreign envoy, Steve Witkoff, will arrive in Moscow on Wednesday after the Kremlin requested a meeting with him in a last-ditch effort to avoid the punishing new sanctions Trump has threatened to impose this week, people familiar with the matter said.

He's set to meet Russian officials - including potential talks with President Vladimir Putin - amid Russia's ongoing war in Ukraine.

Whether Putin can convince Witkoff - and, by extension, Trump - that he is interested in ending the war is a question mark. Trump has cast doubt on Putin's willingness to stop the fighting and appears wary of being strung along by a leader he now openly distrusts, reports CNN.

Putin, meanwhile, has maintai...