How does May collapse the government? Would she have to call a no confidence motion in herself and whip for it and hope Labour joined in?
Well this is the billion pound question for me. May HAS a majority to no confidence herself if ALL Tory MPs vote for an election and the DUP support her. Just. But not to meet the terms of the Fixed Term Parliament Act. This isn't necessarily a problem though.
But if the alternative is No Deal, she will have rebels and it isn't clear how this benefits the DUP. So how many on the government side of the house is crucial. And Conservative MPs have all seen whats happening to Grieve and Boles...
Labour WOULD need to support a motion for a GE OR vote in support of May in someway. In reality the choice would be No Deal or a GE.
What would Corbyn do in this situation????
The responsible thing would be to support May. But Labour policy has been for a GE for ages. I can't see Corbyn doing anything but whip for a GE.
This would cause MAJOR problems for Labour MPs and Lords. Do they support Corbyn or do they defy the whip and support the Zombie PM to block no deal?
In the HoC this has the potential to become a 'blairite witchhunt exercise' where loyalty to the leader is tested to its limits. Its perfect for a the precursor to a Corbyn purge of pesky centrists and rebels. Those MPs who support May are voting for a Tory Government. Thats going to go down well.
Also Corbyn probably wouldn't need a huge number of MPs to support him to vote for a GE.
And this is where the Fixed Term Parliament Act is an issue. If May has enough votes combined with Labour to meet it, thats one thing. If she doesn't her alternative is to repeal the Fixed Term Parliament Act. This also might be an alternative way to block an election by Labour - both in the Commons and in the Lords.
Remember the Repeal of the Fixed Term Parliament Act would have to get through the Lords very very quickly and without a fuss. If the alternative is No Deal, this poses an issue for the Lords if the Commons does pass it. They have to decide whether they delay its passage, to keep parliament open until after 12th April. And if they do, they look like they are blocking Brexit too. The Lords has a Labour / Lib Dem majority and many Conservative Lords are also Europhiles. This could put the Lords in the firing line for a 'democratic backlash' from the far right / far left.
The only way out of this would be for Labour to support a GE BUT to pass an amendment to delay the dissolution of parliament until after the 12th April (or a later No Deal date depending on how the EU handles it). This only would set up a No Deal v No Brexit vote if the WA is blocked / not passed. This isn't good for Labour either. It frames them firmly as attempting to block Brexit. Right before a GE. Its therefore not terribly attractive from a Corbynite point of view.
Thus the best Labour Corbyn could hope for might well be No Deal with full on chaos. Not a last minute No Deal v Revoke vote.
The GE option is the nuclear one. Its effect is not pretty looking. Its yet more crisis. And none of this necessarily stops No Deal. Indeed there is much incentive for Corbyn to enable it... and provoke maximum constitutional issues and harm to the general population.
Lets just say, I do not want to see any of this tested as a theory.