The letter, written to the Daily Telegraph, accuses the Government of “ploughing on regardless” of “overwhelming" opposition, and suggest that the consultation process lacks legitimacy.
According to the Daily Telegraph, around 137 Conservative MPs are expected to vote against the changes based on letters written to their constituents.
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The report also said that many graduates do not even see a 'earnings premium' from their years at university.
The country's counter-terrorism forces have regained control of the facility.
The commissioner of the Metropolitan Police has said he cannot promise the public an attack will not take place.