DUP leader Sir Jeffrey Donaldson has already said his party will vote against the government's Windsor Framework Brexit plans.

Earlier today on Twitter he reiterated the issues he has with the deal.

"I have consistently indicated that fundamental problems remain notwithstanding progress made," he tweeted., external

"Consequently there is not a sustainable basis at this stage to enable us to restore Stormont," he said.

He added that, while his party will vote against the proposal today, they will "continue to engage with the government to secure clarification, reworking and change."

"Our consultation also continues and we are giving people and businesses the opportunity to have their voice heard," he said.

While the Commons debate the Windsor Framework, let's take a look at who has so far come out against the Stormont Brake element of the proposal.

The Democratic Unionist Party (DUP) said it would vote against the deal. Its leader Sir Jeffrey Donaldson said he would work with the government on "outstanding issues". However the government said there are no plans for substantial changes to it.

And this morning, two former prime ministers, Boris Johnson and Liz Truss, both confirmed they would vote against the government.

Johnson said the deal would either mean Northern Ireland remained tied to the EU, or the UK would not be able to take advantage of Brexit. Truss believes it would not resolve issues with a deal Johnson struck with the EU in 2019.

Mark Francois, the chair of a group of Eurosceptic Tories called the European Research Group (ERG), said its "strong recommendation" was for Tory MPs to reject the deal.

He told reporters around 30 Tory MPs had attended a meeting earlier to discuss the group's position, and none had opposed the decision to vote against. But the scale of the rebellion remains unclear.

ERG Deputy Chairman David Jones said he would be voting against the deal. But when asked if the group would take a unified position on the deal in Wednesday's vote, he said: "We are not Stalinist."

The DUP's Jim Shannon says the Windsor Framework is being "shoved" through Parliament without proper scrutiny and questions the Conservatives' commitment to the Union.

He calls the deal a "Windsor knot", giving the EU sovereignty over courts and power over Northern Ireland.

Northern Ireland Secretary Chris Heaton-Harris says he fundamentally disagrees, saying he's "very proud to be a unionist" and the deal "actually adds to the democratic scrutiny that is available".

Shadow Secretary of State for Northern Ireland Peter Kyle says the government is "once again distracted by rebellion and infighting".

He says it is "impossible to argue" that the Stormont Brake is "not an improvement" on the current situation, he says there are "understandable concerns" about how the system will work, but it is important to see Stormont return to fully functioning governance, he adds.

"The economy in Northern Ireland is doing well," he says.

He calls out Sir John Redwood, reading out quotes from Sir John's website during the Brexit referendum on benefits the UK could have after leaving the European Union, he says none of the promises have come to fruition.

"Demand for action is warranted," he says, he asks why the government waited until Stormont collapsed before deciding to act on the problems of the Northern Ireland Protocol.

He says Labour will be voting "unanimously" today and will act "in the national interest" while the Conservatives are "riven by division".

MPs are now debating the PM’s new Brexit deal, the Windsor Framework. They will then vote on one part of it - the Stormont Brake.

This section aims to give a future Northern Ireland Assembly a greater say on how EU laws apply to Northern Ireland - a key demand of the Democratic Unionist Party's before it will end its boycott of power-sharing.

Under the protocol agreed by the UK and EU back in 2019, some EU laws on goods and customs apply in Northern Ireland but politicians at Stormont had no formal way to influence those rules.

They, as well as some businesses, had been calling for a wider consultative role - something that had been ruled out under Boris Johnson's administration.

The new deal introduces a mechanism to allow elected representatives in the Northern Ireland Assembly to raise an objection to a new goods rule.

You can read more about the Stormont Brake here.

Jessica Parker
Brussels correspondent

In Brussels, this reworked Brexit deal for Northern Ireland isn’t up for some big debate. All 27 member states backed it yesterday during a meeting of EU ministers.

There was little ceremony and no political drama. In fact, it wasn’t even the central item on the agenda.

Now, as far as the European Commission is concerned, key parts of the agreement will be implemented at an EU-UK meeting in London this Friday.

The Windsor Framework train seems to be rumbling down the tracks, no matter how a group of Tory MPs vote this afternoon.

The EU knows Rishi Sunak has enough cross-party support in the Commons and it believes he’s committed to this agreement.

But there would be concern if the waters started to get really choppy for the Prime Minister who is someone that Brussels far prefers doing business with when compared to his two predecessors.

More now from Heaton-Harris, who tells MPs the Windsor Framework "restores practical sovereignty" to Northern Ireland.

"It addresses the democratic deficit, restores the balance of the Belfast Good Friday Agreement, and ends the prospect of dynamic alignment [with the EU]," he says.

Opening the debate on the Windsor Framework, Northern Ireland Secretary Chris Heaton-Harris says he hopes it will usher in an "age of prosperity" for Northern Ireland "like we have never seen before".

He describes it as a "very, very good deal" and "a massive step forward".

Heaton-Harris highlights the Stormont Brake as a "very good thing", meaning that if the Northern Ireland Assembly "says no to something, the presumption is the government would veto it".

"But without this measure, Northern Ireland would continue to have full and automatic dynamic alignment with EU goods rules, with no say whatsoever in the Northern [(Ireland] Assembly and no veto on amending and replacing measures," he adds.

Northern Ireland Secretary Chris Heaton-Harris is currently reading out his motion.

But it's taking a while as he's frequently giving way to questions from MPs in the Commons.

It's not terribly busy in the chamber just now - this is because most MPs have already made up their mind which way to vote.

But we're watching, we're waiting, and we'll cover any relevant interruptions here, and of course, the vote, when it happens in the next hour or so.

The debate over the Windsor Framework - the government's post-Brexit plan on trade in Northern Ireland - has kicked off in the House of Commons. A vote on the Stormont Brake will come up shortly.

Stay with us as we bring you the latest developments. You can also follow our live stream by pressing the green play button at the top of this page.

A little earlier during PMQs, Sir Keir Starmer said Sunak needed to go out to the streets of Britain, saying the policing around burglary has become worse.

Sunak responded by saying "North Yorkshire is lot further away than north London", referring to his constituency, and defended policing under the Conservatives.

That's it for PMQs - but stick with us as we've got more coming from the Commons this afternoon with MPs about to debate Rishi Sunak's Windsor Agreement that sets out new post-Brexit trading arrangements for Northern Ireland.

And former Home Secretary Priti Patel has just put her head above the parapet to say she will be voting against the deal once the debate wraps up.

Writing in The Telegraph, she calls on Sunak to "go back to the EU and get us a better deal".

Patel says the framework is "a missed opportunity" to resolve the practical challenges posed by the Northern Ireland Protocol, restore democratic accountability, and "put an end to a foreign power... dictating laws affecting the UK".

Labour's Kate Osborne says food inflation is now running at 18%, leaving millions in food and fuel poverty.

How can the PM say his plan is working when so many people are struggling with their weekly food shop?

Sunak says 2m fewer people are living in poverty than when the Conservatives came to power.

He adds the government will stick to its economic plan and is on track to halve inflation by the end of the year, while supporting the most vulnerable people with a range of schemes.

In this week's PMQs Sir Keir Starmer discussed mandatory vetting in the police, asking the PM if he'd support Labour's plan.

He said: "If the government backed Labour's plan for proper mandatory national vetting, we could end the farce that sees different police recruitment standards."

Sunak responds by saying measures are already in place for improvements in vetting.

Alison Thewliss, the SNP MP for Glasgow Central, tells the Commons her Afghan constituent has been told she must return after an application for a visa extension was rejected.

She describes her as an outspoken Taliban critic who is married to a man who worked with the British armed forces.

Called on to personally intervene, Sunak says he won't comment on an individual visa case but that he will ensure the Home Office responds.

Labour's Ian Mearns says energy bills in his constituency of Gateshead have tripled over the last two years.

He says standing charges have increased from an average of 22p in 2019 to 58p from next month - representing a 155% increase or £200 a year - and asks whether the PM will commit to ending the increases.

The PM says government support to households has been extended in the budget and says it goes further including help for people on prepayment meters.

Conservative MP Selaine Saxby asks the PM to congratulate her constitutent, Max Woosey, known as "The Boy in the Tent", who has just finished his three-year campaign to raise money for North Devon Hospice.

The 13-year-old, who's been sleeping in a tent in his back garden since March 2020, ended his campaign earlier this month.

The PM pays tribute to Woosey and "everyone taking part in this fantastic intiative" for raising "such a considerable amount of money" for the cause.

You can read more about Max's challenge here.

Conservative MP Sir Jeremy Wright KC speaks about a small minority of people who have been seriously injured by the Covid vaccination. He says it must be right that they are properly compensated.

He says the current limit is £120,000 and anyone who is disabled by less than 60% gets nothing at all, and asks if the PM would look at changing this.

In response, the PM says in the rare case of a potential injury from a vaccine covered by the scheme, a one off payment can be given, but this doesn't prevent the injured person from pursuing a legal compensation claim with the vaccine manufacturer.

He adds the government is taking steps to reform vaccine damage payment schemes.

The Labour leader says the government should be ashamed over the lack of prosecutions for rape claims.

But Rishi Sunak told Sir Keir Starmer said neighbourhood crime had fallen by 25% since 2019, and the government is on target to double the number of rape cases getting to court..

Labour MP Graham Stringer asks a question about "science not being followed" during the pandemic. "Lessons must be learned," he says, and asks the PM if he agrees to a "short-term focused inquiry" that can give recommendations "so that we do better next time".

The PM says that that written evidence will be gathered throughout this year and public hearings will also start this year - and that it's for the independent chair to set the terms.