Leader Jeremy Corbyn has spoken about retaining access to the EU single market, and Theresa May outlined the government's official Brexit plans last week. But would you support a second referendum vote now? Let us know in our poll below:
POLL: Should Britain hold a second referendum on Brexit following Labour deputy's comments on EU?
Labour deputy leader Tom Watson has hinted that the party may back another referendum on Brexit, stating 'we're not ruling it out'.