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The resignation of the BBC's director general was "regrettable" but he was "right to do so", the chair of parliament's culture committee has told Sky News.
Dame Caroline Dinenage said she was not expecting the resignations of Tim Davie and the chief executive of BBC News Deborah Turness, which they announced on Sunday evening.
She told Mornings with Ridge and Frost: "I think it's really regrettable that Tim Davie had to step down - huge commitment to the BBC and public service broadcasting.
"But I think he was right to do so. I think restoring trust in the corporation has got to come first."
Dame Caroline, who will chair a culture, media and sport committee meeting on Tuesday where the issue will be discussed, said the BBC was "very slow to react" to a leaked report by Michael Prescott, an independent adviser to the BBC's editorial guidelines and standards board.
The dossier, sent to the BBC board and leaked to The Daily Telegraph, accused a Panorama special on Donald Trump, released a week before the 2024 US election, of being "neither balanced nor impartial - it seemed to be taking a distinctly anti-Trump stance".
He also said the programme had spliced two clips from separate parts of Mr Trump's speech to his supporters on 6 January 2021, the day of the Capitol Hill riots, to give the "impression that Trump had incited protesters to storm Capital Hill".
Mr Prescott also raised bias concerns about the BBC's coverage of trans issues and the war in Gaza.
Dame Caroline accused the BBC of failing to take his report seriously "until it was too late".
Ms Turness arrived at the BBC's central London headquarters on Monday morning, where she admitted "mistakes are made" but said there is "no institutional bias".
She defended the BBC's journalists, saying "of course" they are not corrupt and they "strive for impartiality".
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Dame Caroline said the situation "has to influence the BBC charter decisions".
The BBC's Royal Charter outlines the corporation's mission, public purposes and governance, along with specific obligations and how it is funded.
It is up for renewal in 2027, with the government currently carrying out a review to determine the BBC's future, including its funding model and mission.
Dame Caroline said the last review, 10 years before, put integrity as the BBC's top missions.
She added: "I think the charter has to look at how the BBC retains its balance and its integrity, how it retains the trust of the British people and the licence fee payer, because, you know, that's absolutely fundamental for the future of the BBC.
"But actually it reflects upon us as a nation, because the BBC is such a well known and such a well respected brand around the world."
BBC chair Samir Shah is expected to apologise in a letter to Dame Caroline's committee later today.