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Westminster’s having a wobble: Morgan McSweeney has resigned as Keir Starmer’s chief of staff

ended 10. February 2026

Westminster’s having a wobble: Morgan McSweeney has resigned as Keir Starmer’s chief of staff, saying he takes “full responsibility” for advising the appointment of Peter Mandelson. 

A big chunk of the backlash is about Mandelson’s links to Jeffrey Epstein. And the political row now includes arguments about what Starmer knew (or was told) at the time the appointment was made. That point is being kicked around publicly, including in Parliament and in reporting about the vetting process. 

Now, strip away the politics. If this was a normal workplace, here’s what employment law would actually care about.

What would happen in a real business?

1) Was it a genuine resignation, or a “resign or else” situation?

If someone resigns because they feel pushed out, that can quickly become a constructive dismissal argument (and if they’ve got the service, potentially unfair dismissal). The label “resignation” doesn’t magically make it risk-free.

2) Notice + exit terms would be handled cleanly (or it gets messy fast).

You’d look at the contract: work notice, garden leave, or PILON. Then, ensure that the final pay and holiday amounts are correct. Most claims start with “I didn’t get what I was owed, not “I want a legal career.”

3) Reputational due diligence becomes an HR process problem.

If a senior appointment blows up because of a “known controversy”, the business needs to demonstrate that it had a reasonable vetting process and decision trail. Not vibes. Not “we thought it’d be fine.”

4) Comms would be short, factual, and boring on purpose.

Because anything blamey, dramatic, or gossipy becomes Exhibit A later.

 

  1. If this happened in your business, would you expect the adviser to resign, or should leadership own it and fix it?
  2. Where’s your line on reputational risk: what’s “background noise” and what’s a hard no for a senior appointment?
  3. Do you actually have a written vetting process for senior hires… or is it “someone’s mate who seems solid”?
  4. If a senior person resigns after a controversy, do you treat it as straightforward, or do you worry it was a forced resignation?
  5. What’s your default exit route for senior roles: work notice, garden leave, or settlement agreement?
  6. If you found out after hiring that a leader had withheld something serious, would you go disciplinary/investigation or negotiate a clean exit?

 

2 responses from the Newspage community

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Kate UnderwoodVerified
Founder & Chief People Strategist at Kate Underwood HR and Training
This whole thing is a perfect example of how politics and real workplaces are two different planets. If you appoint someone knowing there’s baggage, especially links that have already been reported, you don’t get to look surprised when it blows up. The row here is clearly about what Keir Starmer knew at the point of the Mandelson appointment, and whether reputational risk was properly weighed up. Now flip it into employment law. In a normal business, if a senior employee resigns after a scandal like this, the first question is whether it was a genuine resignation or whether they felt pushed. If it’s the second one, you are straight into legal risk territory. Calling it a resignation does not stop it becoming a claim later.
For small businesses, the lesson is brutally simple. Do your due diligence properly, document your decision-making, keep comms short and factual, and make sure the exit is handled cleanly with notice, final pay, and holiday pay all correct. Most disputes don’t
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Samuel Mather-HolgateVerified
Managing Director & IFA at Mather and Murray Financial
This should have been an inevitable departure that Starmer could have positioned to save his skin, but McSweeney even seemed to be in control of his exit, with Starmer praising him with a "debt of gratitude". If Starmer's fate wasn't certain before, this condemns him as having absolutely zero authority and now with no pilot for his political plane. Starmer has about a month before his opponents within the party organise and send forth their stalking horse to ignite a real challenge to his leadership. In the real world outside of Westminster any adviser responsible for such negligence would be immediately dismissed and thie reference wouldn't include such glowing terms.