Finance campaigner marches on to set and tells Tory leader her policy to cut interest rates will only help top earners

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Kemi Badenoch has faced what could be described as the stuff of nightmares for a UK politician being interviewed about a personal finance policy: being ambushed and contradicted live on air by Martin Lewis.

As the Conservative leader was being interviewed on ITV about her party’s plans to cut interest rates for some student loans, Lewis, a campaigner and finance expert, marched on to the set to announce that he completely disagreed.

Ed Balls, who had been interviewing Badenoch for Good Morning Britain, had challenged her on whether the Tory plan would help only former students in the highest-paying jobs. After Badenoch insisted this was not the case, Lewis began shouting from off-set before walking into shot to side with Balls, eventually ending up sitting on the sofa.