Though it’s probably best if they skipped the trust exercises.
Scottish Labour leader Richard Leonard, an ideological ally of Corbyn, backs staying in the customs union.
The Labour leader's big Brexit speech is likely to spell out a small, but significant change in the party's position.
The UK no longer looks like such an attractive place for EU citizens.
They have worked out that the Good Friday Agreement scuppers their plans for a hard Brexit.
The joy of the three baskets idea is that everyone gets to tell themselves that it will be their basket that ends up the fullest.
EU citizens can vote in the local elections next May. And they are as angry with Labour as with the Tories.
“As Jeremy listens to people, I’m sure he could change his mind,” says the pro-EU Corbynite.
But will the party’s Brexit conundrums let her?
Brexit won’t mean being “plunged into a Mad Max-style world”, according to David Davis.