More from the panel as Rachel Johnson, sister of the former prime minister Boris Johnson, is asked about Rishi Sunak's policy changes this week.

She answers: "The lectern said 'long term decisions for a brighter future'."

"As I saw it, I thought 'no we we are making short-term decisions for a darker future' when it comes to transport infrastructure and net zero.

"These are populist measures we are going after."

She adds that the government is "equating green with expensive, which is wrong - green is going to be very good for the economy if they grip it".

Let's hear what the panel had to say about that interview - specifically those closing lines on Ukraine.

Tory MP Craig Mackinlay says "it feels like the coalition is just a little bit fractured", referencing Poland's change in tone this week.

"I don't think America will abandon [supporting Ukraine]," he adds. "I think they'll stick with it."

Turning to Ukraine, Shapps says the UK will continue to stand "shoulder to shoulder" with the country as it continues to fight back against Russia - regardless of what happens in next year's US presidential election.

Shapps says the UK is continuing to provide ammunition as well as a commitment to train pilots to fly fighter jets.

He says by the end of the year, 30,000 Ukrainian troops will have been trained in the UK as part of the international effort.

"Our support is watertight," Shapps insists as Derbyshire finishes the interview.

Shapps is now defending the government's green policies, which Rishi Sunak amended earlier this week.

He claims that, despite this, the government can meet their 2050 climate goals - but wants to give families a "bit of a break" to let them change their boilers over time rather than force an "unrealistic" pace.

Shapps continues, saying he has no doubt net zero is still achievable by 2050.

And when pushed on the UK being "way behind" other European countries with heat pumps, he says 50% of UK homes are almost insulated and the government has achieved a lot in the last few years.

Let’s remind ourselves what the term net zero actually means.

In short, it means no longer adding to the total amount of greenhouse gases - such as carbon dioxide (CO2) and methane - in the atmosphere.

Not all emissions can be reduced to zero, so those that remain need to be matched by actively removing greenhouse gases from the atmosphere - which is known as "offsetting".

The government has made a legal commitment to reach net zero by 2050.

Some critics have argued that Prime Minister Rishi Sunak‘s change in policy puts this target at risk, but Sunak insists the government is still on course to achieve it.

• You can get the full detail on what net zero means here

That's not what you said in March, says Derbyshire, who says Shapps claimed that petrol and diesel cars would be banned.

Shapps argues that 2035 has always been the final phase out - till then, you can still have a hybrid car, which do use petrol and diesel.

After some back and forth, Derbyshire moves on to the wider goal of achieving net zero by 2050.

Turning to Rishi Sunak pushing back various green measures - including the banning on selling new petrol and diesel cars by 2035 - Derbyshire questions Shapps on these issues.

Shapps says he "entirely" backs the changed deadline on selling new petrol and diesel cars.

He adds that the UK has already "exceeded our carbon budgets. That so-called 'pushback' was always the end date for the sale of petrol and diesel cars".

Shapps says what's changed is the cut off in 2030, where all cars would have to be hybrid to be sold. He claims they were always allowed to be sold (petrol and diesel) if they were hybrid, until 2035.

Derbyshire asks Shapps about the Northern Powerhouse rail - services between Leeds, Manchester and Liverpool. Will those plans go ahead, even if HS2 is cancelled?

Shapps says he cannot answer that question as he is not the current transport secretary - or chancellor

"But you made the plans when you were the transport secretary," Derbyshire exclaims, to which Shapps says those decisions were made before a war in Ukraine and cost of living crisis began.

Derbyshire continues to question Shapps on whether people living in the north of England will miss opportunities if parts of HS2 are axed.

Shapps reiterates that the government has spent billions on this infrastructure and that he's here "to talk about defence"

"No decisions have been made on HS2 yet," Shapps says again.

Derbyshire now quotes the Tory mayor of the West Midlands, Andy Street, as saying it would be "a disaster" to the country if the Birmingham to Manchester leg of HS2 doesn't go ahead.

Is he right, she asks?

Shapps says this is rather "jumping the gun" because no decision or announcement has been made.

Shapps is pressed on whether the government accepts responsibility for costs being out of control, as Derbyshire reads out some quotes from John Dickie earlier in the week.

Dickie, who is Business London's chief executive, suggested policy shifts were "no way to run Britain's long-term infrastructure projects".

Derbyshire cites Dickie as saying: "The constant chopping, changing, the uncertainty over the scope and the timing of this project, is a big reason why its costs have risen over the past decade or so."

Shapps says, again, that here are external factors to consider. "Any government that doesn't go back and look at [such costs] is crazy," he tells Derbyshire.

Shapps goes on, saying the government has spent over 30 billion pounds on transport infrastructure, which suggest it is still committed to the HS2.

He also says he doesn't believe the government is entirely responsible for the project's costs being out of control.

The defence secretary says external factors - such as inflation - are to blame.

Shapps says the sequencing of what happens next to HS2 is a "perfect legitimate" question, as he emphasises the financial impacts of Covid-19 and the war in Ukraine.

He insists this is a "serious government" making long-term decisions.

Derbyshire picks up to say, again, that it's not looking good to which Shapps replies it would be irresponsible for the government to keep spending money as though there hadn't been a change to the wider "fiscal picture".

Victoria Derbyshire begins by asking Grant Shapps about HS2. Are the plans Shapps laid out during his time as transport secretary going to be delivered in full?

Shapps says there have been no announcements that change the 2050 net zero target. He adds that it is important the government weighs up if the HS2 still works for the country.

"It's not looking good then," concludes Derbyshire.

Rachel Johnson is asked about the imminent election.

"He does seem to be changing his mind on a lot of policies," she says about Rishi Sunak.

"My big question is, if he is setting out an election battleground how is he going to take the Tory Party with him?"

She adds that the prime minister's going to have an "internal war as well as an external one" on his hands. "Good luck to him."

While Victoria Derbyshire and the panel look at today's headlines, here's our take on them.

The Sunday Telegraph leads with suggestions the government will scrap part of HS2 due to a rise in costs continues to be a focus for a number of papers. The paper quotes a government source as saying that Rishi Sunak is worried that if the Birmingham to Manchester leg is built, "there won't be money for anything else".

Also in the Observer, there are reports of claims by several Tory sources the PM is facing a "huge backlash" over any decision to scrap the northern leg of the high-speed rail line. The broadsheet says a middle-ranking minister could resign if the project is cut back.

• For a fuller look at Sunday's headlines, click here

It’s that time - Sunday with Laura Kuenssberg is now live now on BBC One, the BBC News Channel, BBC iPlayer and right here on this page.

Once again, Victoria Derbyshire is filling in for Laura this week.

Expect questions on a range of issues, including the government’s stance on net zero, the environment, and the future of HS2.

As we’ve said before, you can follow the programme live by clicking the Play button at the top of this page.

Image source, EPA

There have been some key developments in Ukraine this week - and with the newly-installed defence secretary appearing on today’s show, it’s worth remembering some of them.

“Ukraine fatigue”: A significant change of tone from the Polish government shocked many. But there was no misinterpreting the Polish president's words. Andrzej Duda compared Ukraine to a drowning man who risks dragging his rescuers down with him.

Long-range missiles: President Joe Biden is reportedly planning to give Ukraine advanced long-range missiles, US media has reported, which would enable Kyiv to hit Russian targets deep behind the front line. Neither the US nor Ukraine have officially confirmed the reports.

Ukraine targets Russia’s navy: On Friday a Ukrainian missile strike hit the headquarters of Russia's Black Sea fleet in Crimea - an important target for Kyiv and seen as the best of Russia's navy. The head of Ukraine's military intelligence later claimed Russian commanders were among those injured in the strike.

Zelensky in Canada: The Ukrainian president visited Canada for the first time since the Russian invasion. He was joined by his wife and Ukraine’s First Lady Olena Zelenska.

The government has faced fresh criticism over the HS2 railway this week after ministers refused to guarantee it would continue between Birmingham and Manchester.

HS2 is a high-speed rail link that is meant to connect the north of England to London with ease. But amid spiralling costs, some are concerned about its future.

More than 80 companies and business leaders have, in the last few days, written to the government expressing "deep concern" over "the constant uncertainty" that "plagues" the project.

A government spokesperson said on Friday that "our focus remains on delivering" it.

But BBC News understands the government will make a definitive decision on the future of the Birmingham to Manchester section of the HS2 rail line in the coming week.

Grant Shapps was England’s transport secretary between 2019 and 2022, so it’ll be interesting to see if the project’s mentioned this morning.

Image source, .