Day 48: Does Russia hold all the cards?

US President Donald Trump says Russia "holds all the cards", a statement rattling Ukraine and fuelling concerns that he’s handing Moscow the advantage.     Our US correspondents Mark Stone and James Matthews break down Trump's latest stance on the war in Ukraine, his threats of banking sanctions on Russia, and the shifting dynamics within NATO.     Meanwhile, White House tensions flare as reports emerge of Elon Musk and Marco Rubio going head-to-head in a cabinet showdown, forcing Trump to step in and draw the first real limits on Musk's influence.   If you've got a question you'd like James, Martha, and Mark to answer, you can email it to [email protected].