Today in Parliament

Alicia McCarthy reports on the latest developments in the Mandelson affair as MPs prepare to vote on whether the prime minister should face a parliamentary investigation into his conduct.

Alicia McCarthy reports on the fall of the assisted dying bill in the House of Lords and asks what's next for campaigners. Also - how MPs work as a pack on high-profile inquiries.

Sean Curran reports from Westminster as Cabinet Office permanent secretary Cat Little gives evidence to MPs on Lord Mandelson's security vetting.

Mandelson vetting row at PMQs.

Sean Curran reports as the Foreign Office former mandarin Olly Robbins answers questions about Peter Mandelson's appointment as US ambassador