Ukrainian President Volodymyr Zelensky canceled his scheduled speech to the US Congress today due to a “last minute” event, Senate Democratic Leader Chuck Schumer said.

“Zelensky cannot come to our briefing at 3 p.m., something happened at the last minute,” the US senator told reporters.

Ukraine’s president was due to address the US Congress via video conference, hoping to push for the release of a new but crucial aid package for his war-torn country.

Washington is the biggest supplier of military aid to Kiev, having given tens of billions of dollars since the Russian invasion in February 2022.

But Democratic President Joe Biden’s pledge to continue supporting Ukraine financially is in serious jeopardy, a disastrous scenario for Kiev, whose counteroffensive has been disappointing as it has not brought the hoped-for territorial gains.