The Guardian reports
says that 1922 Committee
chair, Graham Brady
treasurer, Sir Geoffrey Clifton-Brown*, has said that he will allow a new no confidence vote in the prime minister if she doesn't announce a resignation date tomorrow. Adding that Clifton-Brown believes that there is overwhelming pressure to change the rules and hold a ballot on confidence in May.
As mentioned earlier, Brady is the one who can tip the scales here as he had earlier struck a deal with May to allow her up to early June before resigning. However, the 1922 Committee held a secret ballot yesterday to vote on changing the rules so as to be able to call a no confidence motion against May immediately.
Hence, the current suggestion is that if May doesn't announce a departure date by tomorrow, the committee will take things into their own hands and read out the results of the secret ballot - which is likely to allow for the rules to be changed.
*Update by The Guardian, it wasn't Brady who made the comments but it was Clifton-Brown