Julia Hartley-Brewer has insisted that calling someone an "ardent Brexiteer" is not an insult, during a heated discussion with the shadow pensions minister.
The talkRADIO host clashed with Labour MP Jack Dromey, after he implied she was prejudiced during a discussion about the outgoing Commons Speaker, John Bercow.
"Of late, you wear your prejudices on your sleeve," the politician said.
"You're asking me about the man as a Speaker holding governments to account. He has done that admirably."
However, Julia raised previous bullying and harassment allegations made against the Speaker, who was given a standing ovation from MPs after announcing his resignation in the Commons yesterday.
She said: "As long as he holds the government to account then that's fine? It doesn't matter that he allows bullying and harassment of staff, allegations - which he has denied in fairness - from his own staff.
"You're quite happy to praise a man as a decent guy, one of the finest Speakers ever, who has those accusations against him?".
Defending his view that Mr Bercow is a "decent man", Mr Dromey replied: "You can try all you want to take a different view, the view of Boris Johnson.
"There was a time when you were more balanced in your outlook. Now, as an ardent Brexiteer...".
He was cut off by Julia, who said: "That's not an insult by the way. You do know that being an ardent Brexiteer isn't actually an insult?".