President Donald Trump won multiple elections thanks to support from the Maga movement - but cracks have begun to emerge in the broad coalition of America's political right.

The schism first emerged online as Maga supporters-turned-detractors began to criticise President Trump, saying he has failed to deliver on campaign promises they voted for. Maga congresswoman Marjorie Taylor Greene - once one of President Trump's most vocal supporters - quit Congress last year after becoming increasingly critical of the president over issues such as continued US involvement in foreign wars, the failure to tackle the cost of living in America - and failure to release all of the FBI's files on the investigation into Jeffrey Epstein.

But two months prior to her quitting, it was the murder of conservative influencer, Charlie Kirk, which really sent a shockwave through the movement. A power vacuum at the top has been filled by some curious characters, as other activists have fought for control of the space Kirk once dominated.

And when former Fox News host Tucker Carlson - perhaps the most influential thought leader in conservative America - invited Holocaust denier Nick Fuentes onto his podcast, a vicious debate kicked off which continues to this day.

Some Maga influencers say they'll welcome anyone into the fold, but more mainstream Republicans continue to call for the rejection of these elements - and are concerned they could cost the party votes in November's midterm elections.

Warning: This programme features and discusses some anti-Semitic and racist points of view.

Presenter: Mike Wendling

As the government’s flagship Employment Rights Act (2025) comes into force, File on 4 Investigates a loophole worrying experts: bogus self-employment. We discover hundreds of workers on government contracts are said to be wrongly classified as self-employed. This we are told is the tip of the iceberg as more employers increasingly choose to put workers on self-employed contracts rather than employing them as staff, without all the rights, bolstered under the new laws.

Some are suggesting that recent changes to National Insurance have meant more business owners are keeping workers off payroll to keep running costs down. We will look at small businesses where it’s become increasingly difficult to employ staff in the traditional way and find that some workers in hospitality for example like the flexibility that job apps can give them when picking up casual freelance work.

Presenter: Tom Wall

Sexual harassment and assault on the rail network is on the rise across England, Wales and Scotland but a lack of CCTV evidence is preventing justice for victims in some cases.

Claire Jones examines how broken cameras and train companies not retaining CCTV footage for long enough has been hampering police investigations.

Details of organisations offering help and support for anyone affected by sexual violence are available at bbc.co.uk/actionline

Boxing is on the rise with streaming giants now broadcasting major fights and heavy investment from Saudi Arabia reshaping the sport. But for boxers facing money or health problems out of the ring, help is not always easy to come by. As File on 4 Investigates discovers, some in boxing are now working towards a unified approach across the sport, which would help fighters throughout their careers, but can they make it work?

Reporter: Kal Sajad

Details of organisations offering help and support for the issues raised are available at bbc.co.uk/actionline

Virtual Wards, where patients receive hospital care at home, were heralded as one solution to help deal with the bed crisis in NHS hospitals. The system is popular with patients and has had successes, but some health boards in England have put the brakes on and the number of virtual beds has stalled in the last 12 months. Jane Deith meets the doctors on the front line of providing care to patients with acute conditions in their own homes and the people who benefit from being able to stay out of hospital.

Supporters of virtual wards or hospital at home say it's better for patients, saves money and prevents a significant number of hospital admissions. But some doctors question whether the system can make much difference unless it is introduced at scale.

District nurses are the original method of keeping people well and out of hospital. But in the last fifteen years, their number in England has almost halved - down 43 percent. Jane goes out with one nurse on a shift to see the work they do and hears from nurse leaders about concerns that district nurses are overstretched, leading to concerns about patient care.

Reporter: Jane Deith

File on 4 Investigates: Missing Billions examines the changes to the financial system over the past ten years, including bank branch closures and the digitisation of the finance industry which has led to many financial assets being lost, mislaid or forgotten. It examines the scandal of £100 billion belonging to you and me, but kept by Britain's trusted financial institutions.

The documentary solves the mystery of some missing church silver, helps a frustrated ambulance worker hunt an elusive pension and hears from the valiant individuals leading the charge to make changes to the finance industry.

Featuring contributions from: Steve Webb (Former Pensions Minister), Helen Boyd (Reclaim Fund Ltd), Derek French (Campaign for Community Banking Services), Duncan Stevens (Asset Tracing Service Gretel), Tom Storey (Vaults Group), Les Clarke (Assets Recovered Ltd) plus responses from the NHS, South East Coast Ambulance Service, Santander UK and Lloyds bank.

Presenter, Simon Barnes

A Rakkit production for BBC Radio 4

When a woman reported an allegation of rape against a serving police officer, she found herself in the dock, charged with perverting the course of justice. File on 4 Investigates hears how she went from being a potential victim to a suspect accused of lying.

Over the past decade, hundreds of rape complainants in England and Wales have been investigated for making false allegations. The programme examines when and why the justice system turns on those who come forward, and asks whether the safeguards meant to protect potential victims are being properly applied.

Producer: Hayley Mortimer

Details of organisations offering help and support for the issues raised are available at bbc.co.uk/actionline

File on 4 Investigates whether the risks associated with the popular hair loss drug Finasteride are understood, after a 2024 review by UK drug safety regulator the MHRA prompted by a lack of awareness of the drug’s side-effects. Finasteride’s most common side effects are reduced libido and erectile dysfunction, affecting more than one in a hundred patients. Some people also report low mood and suicidal thoughts.

As Johnny I'Anson discovers some hair loss clinics are failing to adequately warn customers at the consultation stage of the sexual side effects assocated with Finasteride.

The drug, which is highly effective at halting hair loss, is only available by private prescription for hair loss purposes.

But File on 4 Investigates discovers influencer accounts on the social media site TikTok promoting finasteride, also offering discounts for Finasteride with Manual, a popular UK men's health company. A lawyer expert told us that the videos we found constituted advertising.

As a prescription-only medicine, it’s illegal to advertise finasteride to the public like this. This programme flagged the videos to TikTok, and they have since been removed. The company has also banned three of the accounts promoting the drug, saying they breached its rules. Manual said it was not involved in the making of the influencers’ videos.

Presenter: Johnny I'Anson

Details of organisations offering help and support with mental health are available at bbc.co.uk/actionline

File on 4 Investigates reveals new data showing a significant rise in housing disrepair claims, now a growing market for unscrupulous No Win No Fee lawyers. Adrian Goldberg asks, has the Solicitors Regulation Authority learned its lessons from the collapse of the law firm SSB which left hundreds of householders with huge legal bills, and are they able to protect vulnerable social housing tenants from potentially risky NWNF claims?

File on 4 Investigates have been told by 5 major housing providers across England and Wales that housing disrepair claims have been growing significantly.

One social housing provider in the South of England with an estate of 85,000 homes has told us its seen a 375% rise in the number of legal claims launched by tenants in the last 5 years. We speak to John Golding, a 74 year old pensioner living in a housing association flat in Staffordshire about how a canvasser knocking on his door tried to pressurise him into pursuing a housing disrepair claim with a Manchester based No Win No Fee solicitors' firm.

Reporter: Adrian Goldberg

Do you give homeless people cash? Many people fear any donation will be misspent but a ground-breaking study in the UK is currently recruiting 125 homeless people to receive a large one-off cash payment, paid directly to them. There's no restrictions on what they can buy with the money. It can be used for anything, it’s entirely up to the individual how they choose to spend it. The aim of the project is to see if it will help people move on from homelessness for good. With exclusive access to the ongoing study, Michael Buchanan follows some of those who’ve been given the cash to see how the money is being spent and what impact it‘s having on their lives.

Reporter: Michael Buchanan