It follows that any Tory MP voting with Corbyn would thus be deprived of the whip, and ineligible to stand as a Party candidate in any election that followed.
It would be the easiest, least disruptive, and most productive way for this country to genuinely leave the EU until we have a bespoke UK-EU deal.
The key question is not whether we can diverge, but whether we can do so without asking the EU first and obtaining their prior agreement.
We are not yet there, but it’s clear the Brexit cup is not, as some gloomily believe, half-empty but in reality very nearly full.
Nor will the eventual separation from the EU see a sudden break. Rather, this will be a gradual and partial divergence.
The arrogant behaviour of the EU so far, bordering on the deliberately offensive, is a bluff that we need to call.
There is time to correct the lack of preparedness of our customs and computers for 2019. But it is running out.
The referendum was at least as much a vote against London as against Brussels – and those whose expert arrogance made them seem to many to be foreigners here.
From speaking to civil servants, it seems that – at least until recently – the Cabinet had not properly considered either a preferred end state or indeed transition policy.
By reminding us that the EU status quo isn’t on the table, Juncker has done us a favour. Now May must set out her own stall.
This way we can secure full Single Market access, rather than settle for a free trade deal that would be suboptimal and take too long to negotiate.
The famous photo of the EU’s negotiator sitting with a pile of papers was misinterpreted. Those were the order that limit his scope.
What counts most is opposition to a Bill or to parts of it. And most Tory criticisms of the EU Withdrawal Bill aren’t coming from the Brexiteers.
The provisions of the Withdrawal Bill are limited in scope, will be policed by the courts, and lack any plausible alternative.
Has anyone told Barry Gardiner about this latest change? Only last month, he wrote that staying in the Customs Union would be “a disaster”.