A week in the life of the White House press briefing room

The battle between Donald Trump and the media has proved to be one of the defining features of his presidency so far.

What is it like to be a fly-on-the fall inside the White House press briefing room? Filmmaker Olly Lambert spent a week behind the scenes.

His report for BBC Newsnight covers the week in mid-February when national security adviser Michael Fslynn resigned and Mr Trump held his first solo press conference since taking up the presidency.