Was there a Christmas party in 10 Downing Street last year during lockdown? The Mirror received a tip-off from an anonymous source, alleging that a party took place. ITV News then secured footage of Downing Street aides joking about a party. How did the journalists involved get hold of these stories, and what did they do to "stand them up"? These two scoops dominated Prime Minister's Questions and every news bulletin. So what is the relationship between the government and the Lobby?

Guests: Pippa Crerar, Political Editor at The Mirror; Paul Brand, UK Editor at ITV News; Kitty Donaldson, Political Editor at Bloomberg; Michael Crick, Political Correspondent at Mail Plus; Katie Perrior, former Director of Communications at 10 Downing Street.

Studio engineer: Giles Aspen

Producer: Hannah Sander

Presenter: Ros Atkins

Editor: Richard Hooper

Inside the No 10 Christmas party scoops