Welcome back to another Monday Q&A session.
The big stories today, while the coming end of the US government shutdown is huge in America,
but of course Donald Trump and the BBC, that's pretty huge too.
Just after we recorded with Matt Shirley, we had breaking news,
the US media reporting that Donald Trump is threatening to sue the BBC for a billion dollars.
And we also talk about Elon Musk, which we do often,
but it's worth doing this time round in particular because he's launching a rival to Wikipedia.
We also discuss whether Barack Obama might return to politics.
When we got going, Matt wasn't even in the studio.
He was on his way back from interviewing the Chancellor down the road at number 11 Downing Street.
The Chancellor, by the way, if you're not living in Britain, is the Treasury Minister in Britain.
So we start this edition with me.
filling in live on the radio until he got into the studio.
Here's our episode with me, Marianna, and Anthony as well.
Welcome to Americansis.
This is the most exciting moment in my broadcasting licence, just in web here from America's Matt.
As you know, he's just been interviewing the Chancellor.
There was a very dramatic exit from number 11.
He is somewhere, currently, between number 11 Downing Street and the BBC's offices in Westminster.
There's a video feed of the interview that he was conducting here in the studio.