Keir Starmer says it is ‘staggering’ and ‘unforgivable’ that he was not told Peter Mandelson had failed security vetting before taking up the role of US ambassador. The comments follow a Guardian investigation that exclusively revealed Mandelson had initially been denied clearance after a background check by security officials, but that the decision was overruled by the Foreign Office. Lucy Hough speaks to the Guardian’s head of investigations, Paul Lewis – watch on YouTube

When it comes to theology, Donald Trump’s vice-president clearly knows best. Are we about to see an American break with Rome?

The battle to be the absolute worst Trump henchman can feel so closely fought. But in the end, it’s always JD Vance, isn’t it? You would say Stephen Miller, but Miller’s too hidden to qualify as a front-of-house henchman among the US president’s court of grotesques. Stephen’s clearly been judged so wantonly horrifying that the administration must keep him out of public view. If you enter the store, Miller is the only-for-the-initiated entity alluded to in a whisper by the oleaginous sales assistant. “We do have something in the back – off-the-books, as it were – if sir is after something a little more … specialist.”

But Vance? Vance besets us like the 11th plague – the plague of media appearances. For the next South Park season, I hope the creators give their brilliantly ghastly little vice-president avatar a papal mitre to wear. After all, here we have a man whose pick-me book on his journey to Catholicism has yet to even be published. That tome currently lies in the rectum of HarperCollins, ready to be excreted in June – yet inevitably, Vance is already giving menacing doctrinal advice to the pope as part of the multi-theatre fallout of Operation Epic Facepalm.

Marina Hyde is a Guardian columnist

The storied actor has spent years campaigning to protect green spaces. She invites us into her Surrey sanctuary, where each tree represents a lost loved one

A visit to Dame Judi Dench’s garden in Surrey is bittersweet. The 2.4-hectare (six-acre) plot contains enough trees – about 100 – to count as an arboretum. Among them is a carpet of wild garlic and a wildlife pond from which rabbits like to sip. But each of these trees represents someone she knew who has died. As her eyesight has nearly gone, Dench, who features in the latest episode of the Royal Horticulture Society’s new podcast, Roots, navigates her way around the garden via memories and smell. Here, she shares her stories of the garden and discusses the items that mean the most to her.

Resurgence of 90s minimalism has caused an explosion in the popularity of denim, but can a pair ever be worth £800?

Denim mania is surging across the fashion spectrum. At one end is the luxury brand Alaia with an Aegean blue, comfortable yet flattering £800 pair. At the other is JW Anderson’s collaboration with the high street brand Uniqlo and a £34.90 price tag. Both are proving wildly popular.

Alaia’s line has only just launched, so there are no sales figures yet, but demand for its Japanese denim is such that customers are advised to reserve certain styles in store or call ahead before visiting. At Uniqlo, the straight cut are said to be the most popular, on the front row of the most recent fashion weeks, and routinely sell out online. Blame the resurgence of 90s minimalism.

As the president’s second term has wrought new horrors, comedians reflect on whether humor can still ‘deflate the strongman’s image’

During Donald Trump’s first term, as his lies distorted reality and gaslighted Americans, Stephen Colbert said his goal was to remind his audience: “Hey, you’re not crazy.”

But watching political comedy during Trump’s second term – be it a deranged Saturday Night Live impression of a cabinet member, or a rapid-fire late-night monologue full of ICE jokes – it’s hard not to wonder: are we placating ourselves from the enormity of Trump-induced horror?

Trump administration has riled head of Catholic church over use of theology to justify conflict in Iran

The contrast in experience between the two men disagreeing over war and theology was striking.

On the one side was Pope Leo XIV, the first North American to head the Catholic church and the first cleric from the Augustinian order, who this week visited the modern Algerian city where Saint Augustine once lived. For Leo, who wrote his doctoral thesis on Augustine’s ideas, it was the culmination of a lifelong intellectual interest.

Exclusive: Officials have spent weeks debating whether or not to release highly sensitive information about the affair

Keir Starmer was kept in the dark about sensitive information relating to Peter Mandelson’s security vetting by two other top civil servants, including the head of the civil service, the Guardian can reveal.

The prime minister said on Friday that it was “unforgivable” and “staggering” that senior officials did not tell him that Mandelson failed a security vetting process weeks before he took up his role as ambassador to Washington.

How did the PM’s chosen US ambassador fail security vetting but still get approved, what exactly did he know, and who is to blame?

Downing Street has tried to do a lot of explaining, as has Keir Starmer himself. But there are still plenty of things we do not know about how Peter Mandelson failed security vetting, and what the prime minister did or did not know about it.

Almost all officials working in Foreign Office HQ undergo process before gaining access to top secret material

After Keir Starmer announced Peter Mandelson as his pick to be ambassador to the US in December 2024, officials in the Foreign Office contacted him to organise the security vetting clearance process.

As with almost all of the 8,000 officials working in the Foreign Office’s Whitehall headquarters, Mandelson required a level of clearance known as developed vetting(DV). This is necessary for individuals in roles that require frequent and uncontrolled access to material marked top secret.

Keir Starmer says it is ‘staggering’ and ‘unforgivable’ that he was not told Peter Mandelson had failed security vetting before taking up the role of US ambassador. The comments follow a Guardian investigation that exclusively revealed Mandelson had initially been denied clearance after a background check by security officials, but that the decision was overruled by the Foreign Office. Lucy Hough speaks to the Guardian's head of investigations, Paul Lewis