Day 28: Has Trump’s ‘electric shock’ foreign policy worked?

As White House officials head to Saudi Arabia to begin peace talks between Russia and Ukraine, how influential will Donald Trump be as a powerbroker on the world stage? 
 
And, our US correspondents Mark Stone and James Matthews discuss if Donald Trump and Elon Musk have been rattled by speculation about their working relationship.  
 
You can email James, Martha and Mark on [email protected]