He's wrangled with nazis, ultra-zionists, murderers and Paul Daniels, but Louis Theroux's next project might just be his toughest yet: trying to understand Donald Trump.
In a new series for the BBC, your favourite awkward documentary-maker is set to explore the 'post-Brexit wave of populism' that saw a guy who legitimately appeared in the WWE become President of the United States.
Theroux, who will shoot the upcoming three-part series over in the US, described it as an 'amazing challenge'.
"It feels like a whole cultural, almost sea change in how the world is part of the post-Brexit wave of populism," he told The Mirror.
"The story seems to change every day with Trump. There's something new bubbling under. It's hard to get your head around such a big subject."
"The challenge with Trump would be… something so abhorrent that walks on two legs and is a human being, you have to explore where his foibles come from."
Theroux added: "Hopefully people will like it. It's good."
We're sure it will be, Louis. Perhaps it will even be....