"Human Events" editor Jack Posobiec, from the "New Media Seat" at today's White House briefing, asked for details on what role the U.S. would play in a reported "Article Five-like" security guarantee for Ukraine in the event of a ceasefire.

On Sunday, Secretary of State Marco Rubio, who sat in on the meetings with Mr. Putin at the American air base outside of Anchorage, disputed the idea that the Europeans were coming as a posse to protect Mr. Zelensky from a repeat of the February shouting match.

President Donald Trump made some false claims to the press while meeting with Ukrainian President Volodymyr Zelensky at the White House on Monday – including a long-debunked claim that the US has given Ukraine more than $300 billion in wartime aid.