Benn, Letwin, Cooper and Boles have launched a coup against the PM

The most important amendment going on the order paper today is the one in the names of Hilary Benn, Oliver Letwin and Yvette Cooper – because it is the one that would wrest control of shaping Brexit from the prime minister and deliver this control to MPs.

This is a coup against the PM, against the executive, so Theresa May is honour bound to oppose it, to instruct Tory MPs via a three-line whip to vote it down.