Over the past three months Brexit has become a political crisis. Will it turn into a constitutional one, too? That is a serious risk tomorrow, as backbench MPs — with the help of a wayward Speaker — attempt fully to wrest control of the parliamentary agenda from government and dictate how it should act.
If they succeed, it won’t just affect the outcome of Brexit. It could fundamentally change how our democracy functions.
For an idea of what MPs have in mind, note the remarks made by Sir Oliver Letwin — one of the architects of this constitutional experiment — last month.
“When this House comes to legislate, as I hope it will and fear it must, it will be, so to speak, a cabinet,”