US President Donald Trump’s 50-day pause ahead of possible secondary sanctions on Russia gifts the Kremlin a window to exploit the incremental gains of recent weeks in Ukraine’s east.

Senate Majority Leader John Thune says Republicans will vote on a Russia sanctions bill once Trump approves it, as pressure mounts on Moscow to negotiate peace in Ukraine.

Russian officials and commentators have shown little indication that Moscow is about to change course under new pressure.

That included a Monday joint statement from Republican Sen. Lindsey Graham and Democratic Sen. Richard Blumenthal calling Trump’s threat of ramped-up economic penalties if Russia doesn’t cut a peace deal in next 50 days “a real executive hammer to drive the parties to the negotiating table.”

President Donald Trump may have expected a Russian shudder of fear to greet his threat of “very severe tariffs” on the country if it didn’t agree a ceasefire in Ukraine.

"We are very unhappy, I am, with Russia," President Trump said while in a meeting with NATO Secretary General Mark Rutte.

President Trump has effectively handed Vladimir Putin an extraordinary green light: 50 days to finish off his brutal summer offensive in Ukraine before facing any consequences.

If the president believes the Russia scandal and the Epstein scandal are of equal validity, then the White House has a real problem on its hands.