Labour leader Jeremy Corbyn claims they do. Two academics assessed the facts.
A crushing defeat in June could paradoxically make it easier to elect another leader from the far left.
The particularities of the British electoral system make working together unrealistic.
Labour must develop its pro-social and pro-working class agenda for an electorate that has been failed by globalisation and EU integration.
It will take bravery and vision, but a deal between opposition parties is the only sensible way to respond to a changed political landscape.
By calling a national vote now, the prime minister can strengthen her own position at home and at the Brexit negotiating table.
Although thousands have taken to the streets, protests against Brexit have been muted.
He came to power promising a new kind of politics but has spent his tenure plumbing new electoral depths.
History is littered with the debris of the all too often abusive relationship between the intelligence community and those in power.
We know where Jeremy Corbyn stands on certain issues, but where is the vision? What are the ideas?
All the politicians and journalists claim to care about Stoke, but none of them live here.
Despite pages and pages of proposed amendments, not a single one was passed.
After all the build up, you'd have been forgiven for expecting something a bit more impressive from parliament's debate on triggering Article 50.
It's not going to be easy to square this circle, but the Labour leader isn't presenting a meaningful post-Brexit vision.
The plan is to start again in 2017, but the Labour leader's key messages are still too vague.
Copeland has been Labour for more than 30 years, but these are not normal times and this is no ordinary by-election.
He is revered for founding the welfare state, but the post-war leader also left a lasting legacy in British intelligence.
There is little chance of industrial unrest on the the scale of the 1970s, but Labour still has to tread carefully.
Caroline Johnson won with a large majority in the by-election in Lincolnshire.
The rules have changed but the former PM still knows how to play the game.