- Strongest evidence
- Mainstream reporting on Andy Burnham’s visits and statements (BBC, POLITICO.eu) that repeat him as the named actor.
- Weakest evidence
- Connections between the murder court testimony and long‑run operational effects for Reform UK — the link exists in copy but is thin as an operational constraint.
- Gaps
- No recent national polling to test whether attention converts to support; no published Electoral Commission rulings or prosecutorial conclusions in the window; internal party deliberations and constituency polling are not visible.
- Evidence quality
- Predominantly mainstream national outlets with direct reporting; however the collection mixes high‑quality political reporting with general news and sport that dilute signal.
- Source diversity
- Coverage dominated by BBC and POLITICO.eu with smaller contributions from HuffPost and niche sites; reasonable breadth but concentrated on a few outlets.