Senior figures within the party are said to be furious at the Corporation’s coverage of the election, saying it has been tainted by pro-Labour bias.
One senior Tory said: “The BBC coverage has been ridiculous. They have consistently failed to challenge [Jeremy] Corbyn and have run Labour re-announcements with glee.”
Outrage has been particularly focused on last week’s TV debate with various party leaders where it was claimed the audience was heavily biased in favour of left-wing views.
Conservatives have shown the recent TV debate as an example of BBC bias
The audience had been selected by polling company ComRes, who had been hired by the BBC, to represent voter intention.
During the broadcast Home Secretary Amber Rudd appeared to be almost constantly heckled while Mr Corbyn was usually cheered.
The Prime Minister’s joint chief-of-staff Fiona Hill wrote a formal letter of complaint to the corporation’s Director General Lord Hall after the live broadcast.
The TV election debate – in pictures Wed, May 31, 2017
The televised debate saw Jeremy Corbyn, Amber Rudd, Paul Nuttall, Caroline Lucas, Angus Robertson, Tim Farron and Leanne Wood go toe-to-toe
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The politicians taking part in the debate
Everyone is massively f****d off with the BBC. It’s not just the debate, it’s the whole tenor of their coverage
A Cabinet minister said: “I would love the BBC to start demonstrating some impartiality but we haven’t seen it during this campaign.
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“The bias in the audience for the TV debate was horrifying – Amber should not have had to put with that. The BBC need a really good going over after the election – they are just not impartial.”
But Tories are said to have wider concerns about the broadcaster than just the election coverage.
Amber Rudd (R) is quizzed by Mishal Husain during the BBC TV debate
Another senior Conservative said: “Everyone is massively f****d off with the BBC. It’s not just the debate, it’s the whole tenor of their coverage.”
Senior figures also point to the BBC adopting Labour’s “dementia tax” rhetoric when discussing the party’s controversial social care concerns.
They have also been angered by the focus on cuts to the police force in the wake of the London Bridge terror attack despite the insistence by the former terror tsar Lord Carlile that the argument is “completely misleading”.
Tim Farron (L) and Jeremy Corbyn take part in the BBC debate
Conservative figures also point to the BBC’s alleged lack of attention to Mr Corbyn’s history of opposing anti-terror laws.
When Boris Johnson appeared on Radio 4’s Today programme yesterday and tried to raise the issue of the Labour leader’s track record he was repeatedly interrupted by presenter Mishal Husain.
Amber Rudd (L) and Ukip's Paul Nuttall during the BBC debate
Other criticisms of the BBC, levied by the Tories, include an undue focus on opinion polls in order to focus on the collapsing Conservative vote and Conservative policies often being given scant coverage.
The BBC defended its coverage, saying in a statement: “Our coverage of all political parties during the election campaign has been fair, and we rigorously scrutinise the issue on behalf of the public so that our audiences have clear and impartial information about the issues that matter to them.”