The biggest challenge for President Biden is how to bring two very separate tribes back together, and try and re-establish some sense of a common truth, if not a common politics.

But is the cult of Donald Trump unbreakable, or can such a determined mindset be changed?

We’re joined by the psychologist Mary Trump, who also happens to be niece of the outgoing president.

The last we spoke to her, she said categorically that “if Donald thinks he is going down, he’s going to try to take the rest of us down with him.” He went on to incite rioters to storm the Capitol, and has now been impeached for a second time.

Is that what she had in mind?

Trump’s niece says he knew that conspiracy theories were ‘a really good tool’ – but didn’t believe them himself