Steve Bannon hasn't worked in the White House for years, but he played a pivotal, and previously unreported, role in the explosive meeting between President Donald Trump and Ukrainian President Volodymyr Zelenskyy earlier this year that changed the course of U.S. policy toward Ukraine.

President Volodymyr Zelenskyy has said that Ukraine and Europe are formulating a joint position with which to address the United States in various formats regarding the potential supply of Tomahawk cruise missiles.

President Donald Trump and Russian President Vladimir Putin are no longer meeting in Budapest as was announced just last week.

Speaking with NBC News' "Meet the Press" after his visit with Trump, Ukrainian President Volodymyr Zelenskyy acknowledged he didn't get what he wanted — but it could still happen.

When Ukrainian President Volodymyr Zelenskyy meets with President Trump on Friday, the mood is expected to be very different from their first Oval Office encounter in February.

Trump told Zelenskyy there's "a chance to end the war quickly" and expressed concerns about sending Ukraine long-range Tomahawk missiles.

Russian Foreign Minister Sergei Lavrov said Trump’s call for a ceasefire contradicted the understandings he reached with Putin at August’s Alaska summit.