President Trump jabs at the Russian leader with threats; Vladimir Putin responds with flattery. But there are notable signals in their jousting, including a revived discussion about nuclear arms control.

Speaking in the Oval Office, the US President told Fox News Ukraine's President Volodomyr Zelensky was "no angel" and added he "shouldn't have allowed this war to happen"

President Donald J. Trump called on Russian leader Vladimir Putin to end the war in Ukraine, a bloody conflict that was allowed to erupt due to a […]