An anti-Conservative Party protester holds a placard with an image of British PM Boris Johnson including the words "Partygate" in London, Wednesday, Dec. 8, 2021.

Video. 'Partygate' scandal: Johnson critics face government 'blackmail'

Senior Tory William Wragg disclosed the alleged intimidation campaign as Downing Street battles to shore up PM Boris Johnson against calls from within the party for his resignation.

Latest video