Doug Mills is a three-time Pulitzer-prize winning photographer who for 40 years has documented every moment of the American president’s life - from Reagan all the way to Trump’s second term.
 
He tells all about the most important men in the world - what they’re like in private, and how he’s seen them react through the highs and lows of modern American history. 
 
If you've also got a question you'd like the Trump100 team to answer, you can email it to trump100@sky.uk.
 
You can also watch all episodes on our YouTube channel.