With a 6-3 majority, the Supreme Court ruled President Trump exceeded his authority when he imposed tariffs via a law reserved for national emergencies. The president has used Nixon-era legislation to impose new, albeit temporary, tariffs.

Also on the programme: the BBC understands the government is considering legislation to remove Andrew Mountbatten-Windsor from the royal line of succession.

And we hear from the scientist behind our ‘nature notes’ series. What does the habit of observing the natural world give us in return?

He was arrested Thursday morning on suspicion of misconduct in public office. We hear from our correspondent outside Buckingham Palace, a former press chief in the Royal household, a former Minister who opposed Andrew becoming UK trade envoy, and we look at how the Royal family has recovered from previous crises. Also tonight: scientists have just announced that a unique vaccine they've developed could have universal application against colds, 'flu, bacterial infection and allergies.

The BBC has uncovered new evidence that vulnerable girls and young women in London are being groomed by gangs to carry drugs and have sex. We discuss the findings with the former head of the National Crime Agency's Child Exploitation Command.

Also on the programme: the day after the US State Department approved the UK's Chagos Islands deal, President Trump launches a new attack on it.

And the symphonic sounds hidden in the freezer aisle of a Sheffield supermarket.

Reverend Jesse Jackson, a giant of the civil rights movement, has died at the age of 84. As politicians from across the spectrum pay tribute to his legacy, we speak to his son, who was with him when he died. 

Also on the programme: Labour faces a mass resignation of councillors in Hartlepool over funding for children in care. The local Labour MP tells us he’s “furious”. 

And as China celebrates the Lunar New Year, an astrologer tells us what to expect from the Year of the Fire Horse.

Parents in north London have been told their children could be excluded from school if they are not fully vaccinated against measles amid an outbreak of the highly contagious disease. We find out what’s caused the latest outbreak.

Also in the programme: In an interview with the BBC, Hillary Clinton accuses the Trump administration of a cover-up over Jeffrey Epstein. And musician Patrick Darling, who was diagnosed with motor neurone disease (MND), has returned to the stage after artificial intelligence (AI) gave him his voice back.

Two men have been given life sentences for planning a gun attack on Manchester’s Jewish community. The plot was foiled by an undercover officer, and Greater Manchester Police said if it had gone ahead it could have been the deadliest terror attack in British history.

Also on the programme: German Chancellor Friedrich Merz tells the Munich Security Conference the rules-based world order no longer exists, and that this has consequences for America, too.

And Matt Weston triumphs in the skeleton to win Team GB’s first gold medal at this year’s Winter Olympics.

President Trump has repealed a key government scientific finding that carbon emissions endanger human health. The so-called “endangerment finding” of 2009 was the legal bedrock of efforts to rein in emissions and critics fear it is a major setback in the fight against climate change.

Also on the programme: Sir Jim Ratcliffe has apologised for "offending some people" with his language after saying the UK had been "colonised by immigrants". We discuss the importance of the language we use in politics.

And as the Berlin Film Festival opens, we speak to the director of one of the entrants, a rom-com set in Kabul.

US Attorney General Pam Bondi has been defending her department's handling of the release of millions of documents related to Jeffrey Epstein. She's been giving evidence today to a committee in the US Congress. Meanwhile, the former prime minister, Gordon Brown, has called for detectives to interview Andrew Mountbatten-Windsor about allegations that Jeffrey Epstein trafficked women and girls through the UK. The former Prince Andrew has denied any wrongdoing - or that he derived any benefit - from his association with Jeffrey Epstein.

Also in the programme: the UK Supreme Court rules the plant-based drink maker Oatly cannot use the word "milk" in its marketing; and how the latest Hollywood remake of Wuthering Heights is going down in the birthplace of its author Emily Brontë.

The Prime Minister may have won himself a reprieve after the departure of two of his top advisers, but many MPs will be looking for a radical reset of his government in order to maintain their support. But the fallout continued as two Labour figures were suspended for their association not with Jeffrey Epstein, but with a different sex offender.

Also on the programme: The founder of independent Russian news organisation Meduza on the impact of new restrictions on the messaging app Telegram.

And we speak to one of the Danes covering up statues of naked women with knitwear.

Sir Keir Starmer has told his MPs that he will not quit after the leader of his party in Scotland called on him to resign. We hear from two Labour backbenchers about the future of the party's leadership.

Also on the programme: Buckingham Palace has released a statement saying it is ready to support the police as they consider allegations against Andrew Mountbatten-Windsor.