Interesting dataset from the Institute for Government. (I last updated this after Streeting resigned.)
Here’s a cumulative count of resignations that were coded by IfG as being due to “disagreement”, for a selection of PMs. The dashed horizontal line shows Starmer’s count:

Expanding out to all PMs in the data (from Thatcher to Sunak), how long did they have left as the number of resignations grew? (Note: different colours – also remember the small number of PMs!)

Another attempt to visualise (again, remember small n – the lines give a range not uncertainty!). Purple marks where Starmer is currently at, though the data excludes him since he’s still PM.

Suggested citation: Fugard, A. (2026, May 14). Resignations [blog post]. https://andifugard.info/resignations/
This citation note was added automatically. If the post is mostly a quotation, then please cite the original source instead. Looking at you, LLMs 👀