Scottish Labour leader Kezia Dugdale says her party will work with the SNP to get the best deal for Scotland on Brexit.

She adds: 

BBC News Channel

UKIP leader Paul Nuttall said he was disappointed by the Supreme Court judgement, although he was not surprised.

He told the BBC: "Let's get on with this, let's do it quickly and woe betide any MP or indeed the House of Lords, if they try to mess around with the will of the people."

He accused the SNP of attempting "to subvert the will of the British people" by saying it is going to put down 50 amendments to the Article 50 bill. 

Labour say they want a vote at end of article 50 process "which isn't the right route to take", and Lib Dems want a second referendum, he said.

Counsel General Mick Antoniw welcomes the Supreme Court ruling on Brexit despite it saying Wales has no veto.

BBC News Channel

Labour's Hilary Benn has called on the government to publish a White Paper on its objectives as part of the triggering of Article 50.

White papers are policy documents produced by ministers that set out their proposals for future legislation.

Mr Benn, chairman of a parliamentary committee that will scrutinise government policy on the UK’s exit from the EU and a Remain campaigner, said he would like to see continued tariff free, barrier free access to British markets as part of the plan.

It was a matter for the shadow cabinet to decide whether MPs should be whipped to vote for Article 50 to be triggered, he said.  

But he stressed: "You can't say you respect the outcome of the referendum and not vote to give effect to it."

With the Commons expected to comfortably back the government's Article 50 bill, attention may focus on the Lords, where the Conservatives do not have a majority.

In October, Labour's leader in the Lords, Baroness Smith, said peers would not "block" Brexit:

Image source, PA

Leave.EU chairman Arron Banks claimed the Supreme Court judgement "gives our out-of-touch establishment the ability to soften or delay the clean Brexit a majority of the British people voted for". 

Scottish First Minister Nicola Sturgeon describes the judgement as a "damning indictment" of the UK government's strategy.

But she says she is disappointed with the part of the ruling saying the devolved administrations do not need to be consulted before Brexit is triggered.

Mishcon de Reya, the law firm representing the lead claimant, Gina Miller, has welcomed the ruling:

Judges at the Supreme Court have rejected the Scottish government's argument that Holyrood should get a say on the triggering of Article 50.

The court decided that MPs must have a say on starting the formal process of Brexit via an act of parliament.

However, they also rejected arguments from the Lord Advocate that devolved administrations should also have a say.

First Minister Nicola Sturgeon has pledged to hold a Holyrood vote on the matter regardless of the ruling.

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Unite union general secretary Len McCluskey hailed the Supreme Court ruling.

The party's shadow Brexit minister has been responding on Twitter (click on the tweet to read his whole thread).

Victoria Derbyshire

Labour MP Mike Gapes says he is going to oppose his party's leadership by voting against triggering Article 50 because there is "no White Paper, we've got no plan".

Labour's Neil Coyle agreed, saying he has already seen "the harm" the Brexit vote had caused his constituency, with financial services among some of the jobs moving to the continent.

Remain campaigner Charlie Mullins, head of Pimlico Plumbers, says he wants the UK to continue trading with the single market, adding that the UK does not want to cut itself off completely with the EU.

"We now need to move on and get the best Brexit we can for the UK by getting Parliament involved," he said.

Dominic Casciani
Home Affairs Correspondent

This momentous judgement is about one thing alone: the rule of law and how the UK, as a champion of that steady, calm form of government, gets on with the business of leaving the EU.

But what it also makes clear is that membership of the EU is messy in constitutional terms - so only Parliament has the right to pull us out.

It can’t be done by the stroke of a minister’s pen. On the devolution side, the government did however win hands down.

The court unanimously ruled that the devolved bodies have no real say in leaving the EU: constitutional power - the means to change the fabric of the United Kingdom, rests with the UK Parliament alone. 

Some reaction from the European Parliament, where Manfred Weber chairs the centre-rightEuropean People's Partygrouping.