This is The Guardian.

Brexit remains the scar that hasn't healed.

It's hundreds of billions of pounds that have been sucked out of the British economy.

The problem for the politicians

is that they can't really address that without risking reopening, really awful, bitter war.

Leaving the European Union was a catastrophic mistake. I am not proposing that the UK

considers rejoining the EU. I respect the decision that was made at the referendum.

European politicians are quite deterring that if the UK does come back in, it will not be on

the same terms as it had before. So they're really in a bind. The Brexit debate has been

reignited after Labour leadership contender West Street, said the UK should rejoin the EU.

But with a crucial by-election in Leave voting Makerfield, is this a gift to reform?

From The Guardians today in Focus, this is the latest with me, Lucy Hoff.

Well, joining me from Paris is our Europe correspondent John Henley.

Hi, John. It's great to see you.

So nearly 10 years exactly since Britain voted to leave the EU,

we are now suddenly having another conversation about Brexit after these comments from West Streeting,

who's made it very clear that he plans to stand in any leadership challenge to Kier Stama.

He's described Brexit as a catastrophic mistake, making life quite hard, perhaps by design,

for Andy Burnham, who's campaigning in a very strong leave voting constituency in Makerfield

in the hope that he might be able to run in the leadership race.

It's odd to be having this conversation.

It feels like Labour top brass are trying to put this back in the box.

...