President Donald Trump's Truth Social post comes as he ramps up pressure on Russia and Ukraine to strike a deal to end their war.

Zelensky used the funeral of Pope Francis to launch a diplomatic blitz to head off a U.S. proposal to end Russia’s war on Ukraine on terms favorable to Moscow.

The White House said their discussion was “very productive” and that more details would be released later. The meeting lasted about 15 minutes inside St. Peter’s Basilica at the Vatican just before they took their seats for the outdoor funeral service. Zelenskyy said “good meeting” on social media after the funeral.