It's the fairest way to settle this debate – though in the absence of a clear majority supporting either "remain" or a "no deal" it would probably mean accepting Theresa May's deal.
Some possible outcomes as we head into the unknown.
An EU law expert on what the attorney general's legal advice on Brexit means and its wider significance for the future.
Ministers were found in contempt of parliament on December 4 for not publishing the full legal advice on the Brexit withdrawal agreement.
It might seem counterintuitive, but what if giving MPs more freedom could stop the rebellion?
Supporters and opponents to the withdrawal deal both say national security is under threat – but the truth is that neither side can guarantee anything at this stage.
This group only recently reached voting age, and they'd like to have a say.
Expect more member states to 'do a Spain' once future relationship talks commence.
The prime minister's office has promoted tweets in favour of the Brexit deal – why that's a problem.
Controlling immigration was the most important concern for Brexit voters and May's deal does that.
Theresa May's Brexit plan has crumbled on contact with the reality of UK and EU politics.
The deal now needs to be agreed by UK MPs and each EU member state.
Momentum's position is increasingly out of step with the Labour leadership's on this issue.
Westminster holds its power tight, but that could be bad news for cities and regions.
There's really only one option here, and the UK needs to do some very savvy PR to sell it to Brexiteers.
An association with Brexit and a desire to win back the white working class aren't particularly appealing to minority voters.
The Scottish rocker showed he has clearly lost none of the fire in his belly.
Both sides seem open to a longer Article 50 process after talks in Brussels went nowhere.
Jacob Rees-Mogg speaks for a minority of a minority, so why are we letting him dictate government policy?
The public is increasingly pessimistic about the way Brexit negotiations are going.