Donald Trump says he's 'disappointed' that Vladimir Putin keeps knocking down buildings in Kyiv despite all the great conversations they are having about ending the war in Ukraine, as the First Lady Melania Trump keeps pointing out to him.

So the president is ramping up the threats, offering 'top-of-the-line' weaponry to Ukraine and promising severe tariffs on Russia if there's no ceasefire within 50 days.Is that enough to get Putin to the negotiating table? Or just escalating an intractable conflict? And is Trump even serious about bumping his bestie in Moscow?On the latest episode of The Fourcast, Matt Frei is joined by Channel 4 News’ International Editor Lindsey Hilsum and historian and author Anne Applebaum.