This marked the show’s highest peak audience since April 2021, as the explosive interview saw the presenter savagely call out the Prime Minister for avoiding being interviewed on GMB in over almost five years.
Ms Reid conducted the interview live from Downing Street, as a peak audience of 1.3million watched the tense exchange go down.
The highly-publicized conversation – which saw the pair discuss the cost of living crisis and the war being waged by Russia in Ukraine – peaked with close to a 30% share of viewing.
Between the hours of 6am and 9am, when GMB was on air, the show achieved a high of 2.4m viewers.
Meanwhile, a clip of Ms Reid speaking to Mr Johnson about the cost of living, bringing up a 77-year-old woman called Elsie who eats only one meal a day to avoid using energy at home, has currently been viewed more than three million times.
After the interview, the GMB co-host jokingly admitted that she was ‘surprised she wasn’t thrown out’ after putting the politician to the test.
Speaking to Lorraine Kelly, she said: ‘Yeah, it was remarkable speaking to him. Look, it’s been almost five years since Boris Johnson has appeared on Good Morning Britain and for just over two of those years he has been Prime Minister.’
She added: ‘Fascinating talking to him – you know, it’s historic even being in this building, even being in this room but of course the weight of those partygate ends hangs over these premises.’
Ms Reid received high praise for the way she held the PM to account during their talk, as she said to him: ‘There are claims of sexism in Parliament, partygate investigations continue and there is a rising cost of living crisis. Prime Minister, we have a lot to get through.’
One viewer tweeted: ‘Susanna Reid showing others how to conduct an incisive interview. Not allowing waffles. Excellent journalism.’
‘Absolutely brilliant at holding him to account there. Well done,’ another remarked.
Good Morning Britain airs weekdays from 6am on ITV.
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George Holan is chief editor at Plainsmen Post and has articles published in many notable publications in the last decade.