Aberdeen South.

Scotland's SNP Westminster leader has been making headlines recently -- not for what happens in the voting lobbies, but for his aggressive pursuit of the government over the Peter Mandelson security vetting row. Flynn reported Keir Starmer to the parliamentary sleaze watchdog and publicly demanded accountability after No10 admitted Mandelson had failed vetting checks for his ambassadorial role. That confrontational posture sits alongside a damaging counter-narrative: a prominently negative piece accused Flynn of making unsubstantiated claims about Scottish defence capabilities and advocating nuclear disarmament at a moment of international tension, portraying him as lacking credibility on security. His recent votes on the Pension Schemes Bill show him consistently opposing the government's "mandation power" -- the ability to direct where pension funds invest -- aligning with Lords amendments that sought to constrain that power.

Flynn's parliamentary engagement tells a more complicated story. A 25% voting participation rate is strikingly low by Commons standards, though SNP leaders frequently prioritise devolved matters and set-piece confrontations over routine divisions. When he does vote, he is a 100% party-line voter with no rebel votes on record. His speech activity is substantial -- 151 contributions across 81 debates -- with economy, defence, and energy dominating. His voting profile shows significantly less alignment with pension protection than his SNP colleagues (-59 percentage points), an unusual divergence worth noting given the Pension Schemes Bill activity.

As SNP Westminster leader, Flynn operates primarily as an opposition figurehead rather than a committee specialist -- he holds no committee seats. His news coverage is broadly positive on scrutiny and cost-of-living issues, though the defence credibility story represents a reputational pressure point. Voting data covers 488 divisions since the 2024 general election; the low participation rate limits the conclusions that can be drawn from his voting record alone.