Jacob & co have shown their hand too early. Very few Tory MP,s want Mayhems deal or want her as leader, but they are scared to challenge her now in case they don't win.
I suspect they are waiting for her to lose the commons vote before sharpening the knives.
I also suspect she knows this and when she loses the commons vote will go back to the EU to have a few superficial alterations made to the deal (remember when everyone rejected the EU constitution, and they made a couple of minor changes and renamed it the Lisbon treaty ?) and she will then return hoping to con enough people that she went and gave them what for and dragged them kicking and screaming into making more concessions to her.
That will be her last roll of the dice. Will it work ? Fick knows, but if it does we are locked into Brino for the foreseeable.
Imo, the whole thing is a very British coup, by the establishment and their friends in the MSM, against the 17.4 million voters.