By now most radio callers should really know that if they want to take on LBC's James O'Brien in a debate, then they better have their facts fully memorised and properly researched.
This definitely isn't what happened when one Donald Trump supporter rang up O'Brien's LBC show on Wednesday, to tell the broadcaster why he believed that the president's comments against congresswomen Alexandria Ocasio-Cortez, Ilhan Omar, Ayanna Pressley and Rashida Tlaib were not racist.
In his attempt to defend the president, Stuart added that he believed that the four women were 'hardline socialists' and 'left-wing extremists' and that was all that Trump was trying to point out.
The two then have a back and forth for a few moments where they argue about whether Trump is changing American society and if Barack Obama is taking credit for the current stability in the US economy.
Stuart then goes back to the original debate and accuses O'Brien of sympathising with the four women, which O'Brien responds by asking the caller to name the quartet.
This ignites the downfall of Stuart's argument. After a very long pause he eventually says, "AOC for a start," but when he is asked what those initials stand for he can only come back with:
O'Brien, with a smirk on his face, responds:
No, so you know all about their politics but you don't know about their names and you're on national radio having your pants pulled down.
Stuart eventually gets the name right:
Alexandria Ocasio-Cortez, Omar, Pressley and Rasid Tlaib.
O'Brien, sensing that Stuart is probably reading information from his phone, then asks the caller to name which one of their policies 'demonstrates their socialist tendencies.'
"High taxes beyond all belief," he says to which O'Brien points out that "high taxes under socialism doesn't work because everyone earns the same."
The conversation then descends into an utterly farcical scene as Stuart cannot answer the questions that O'Brien is asking him, including one part where he claims that socialism means 'collapse.'
They eventually start to call each other clowns and then Stuart accuses O'Brien of patronising him to which he agrees.
Of course, I'm patronising you. You're a clown. You're on national radio, condemning socialism and you've been asked many times.
You can watch the full conversation in the video below.