Donald Trump has taken to Twitter to criticise Greta Thunberg after the 16-year-old climate activist was named Time Magazine's Person of the Year.
Trump tweeted that the news was "ridiculous" and that Greta needed to "work on her "Anger Management problem".
Lorcan Nyhan and Brianna Parkins joined us to discuss this and some of the other stories making the news this week.
Listen to the interview in full by pressing the play button on this page.
