BBC News Reality Check

A big question following the announcement in Windsor is how the so-called Stormont brake will work.

The idea is that if there is a change to EU regulations that the elected members of the Northern Ireland Assembly do not like, they can vote to pull the emergency brake and that will allow the UK government to veto the change.

But the brake could only be used if the changes would have "significant and lasting effects on everyday lives" of people in Northern Ireland. Who would decide? It could well be the European Court of Justice, which would not be popular with unionists.

And it is unclear what would happen if the veto was used.

We mentioned earlier that Jacob Rees-Mogg was talking about the importance of what Boris Johnson says about any new deal.

It's worth reminding ourselves of what the former prime minister said about the Northern Ireland Protocol.

He promised there would be no border down the Irish Sea and no checks on goods going from Great Britain to Northern Ireland.

Neither of these pledges turned out to be accurate.

You can read more of what Johnson said about the protocol here.

The changes to the Northern Ireland Protocol are expected to reduce the amount of checks that need to be done on goods going from Great Britain to Northern Ireland.

We've been looking at what was said about potential challenges that Brexit could create in Northern Ireland during the referendum campaign in 2016.

It was hard to predict what would happen because nobody knew what sort of deal would follow the vote to leave the EU.

Many people thought the UK would leave the EU's political institutions but stay in the single market or customs union, which would have reduced the need for checks.

You can read more about what was said during the campaign here.

The SNP’s Westminster leader Stephen Flynn said at PMQs: “Wholesale gas prices have fallen by 75% since their peak yet in just a matter of weeks the British government, the Westminster government, intends to increase energy bills by a further £500.”

There have indeed been considerable falls in wholesale gas prices, although they take time to feed through into energy bills for consumers because companies tend to buy their gas using forward contracts bought in advance.

The government’s Energy Price Guarantee means that a typical dual fuel bill is £2,500 a year, which will rise to £3,000 from April.

There will be cost-of-living payments of £900 for those on means tested benefits, £300 to pensioners and £150 to those on disability benefits.

Without the Energy Price Guarantee, the regulator Ofgem would cap a typical bill at £4,279 a year, but that is expected to come down when the regulator gives its next update on Monday 27 February.

You can read more about what is going to happen to energy bills here.

In PMQs, Labour leader Sir Keir Starmer criticised Boris Johnson as he talked about the problems with Northern Ireland's Brexit deal - known as the protocol.

He told Rishi Sunak: “His predecessor told businesses that there would be no forms, no checks, no barriers of any kind - that was absolute nonsense.”

Back in 2019 - before agreeing to the protocol - Mr Johnson told Sky News: “There will be no checks on goods going from GB to NI, or NI to GB.”

This ran counter to an internal government assessment of the impact of the deal at the time. Since the protocol came into force, more than a quarter of a million products of animal origin have been inspected at Northern Ireland's ports, according to official figures.

You can read more in this piece.

Earlier in the speech, Putin talked about "the attempts of the Kyiv regime to acquire nuclear weapons".

When it was part of the former Soviet Union, nuclear weapons were based in Ukraine. But these were given up when Ukraine joined the Nuclear Non-Proliferation Treaty in 1994.

In 2021, the Ukrainian ambassador to Germany suggested that if Ukraine couldn't join Nato, it might have to reconsider its nuclear-free status.

However, the government in Kyiv has not expressed an intention to acquire nuclear weapons, and a military strategy document published in 2021 did not refer to them.

And the UN's nuclear watchdog, the International Atomic Energy Agency (IAEA), says it has seen no signs in Ukraine "of the diversion of nuclear material, intended for peaceful activities, for other purposes".

Earlier in the speech President Putin said that the Russian economy had only shrunk by 2.2% in 2022 , adding: "I’ll remind you that in February or March they predicted a collapse of the Russian economy.”

That estimate of a 2.2% contraction in the economy measured by GDP in 2022 can be found in the latest report from the International Monetary Fund (IMF).

The 2.2% contraction still makes it the worst-performing country on the IMF’s list, but the organisation confirms that it has contracted by less than expected.

Why? The IMF said that Russian trade was being redirected to countries not applying sanctions against it.

India and China have become the largest buyers of Russian oil, for example, as Western nations restrict purchases and impose sanctions.

In July 2022, the IMF was predicting a 6% contraction in Russian GDP for the year.

You can read more about the Russian economy's performance here.

Nicola Sturgeon was asked repeatedly by journalists at her press conference about the attainment gap between rich and poor pupils, which the SNP pledged to "substantially eliminate" within a decade, in their 2016 programme for government.

Journalists told the first minister the gap “remains pretty wide”.

She did not directly answer the question.

The latest figures from the Scottish government compare the gap in attainment by the most and least deprived pupils between 2016-17 and 2021-22, and suggest that it has not narrowed very much, although Covid may have affected the figures.

The report compared the proportion of pupils achieving the expected levels based on the judgment of their teachers from the most deprived 20% and the least deprived 20% of the population.

On literacy, the gap was 22.1 percentage points in 2016-17 and 21.3 percentage points in 2021-22.

On numeracy, the gap was 17.6 percentage points in 2016-17 and 17.8 percentage points in 2021-22.

You can see these figures in charts 1 and 2 in this report.

Pictures and video from previous disasters in other countries have been shared by people on social media with claims that they show the current destruction caused by the earthquake in Turkey and Syria.

One tweet - from a verified Twitter user - claimed to show a nuclear plant exploding in Turkey. It got more than 1.2 million views.

Reality Check ran the images through a search engine to see if they had appeared online before.

This revealed that they were actually from the aftermath of the Beirut explosion in August 2020.

They've labelled the claim in the tweet 'false' - you can see more examples in this piece.

Twitter screenshotCopyright: Twitter screenshot