Keir Mather.

Keir Mather made history in September 2025 when he became the youngest government minister in 191 years, joining the Department for Transport as a junior minister with responsibility for transport, freight and decarbonisation. That appointment dominates his recent profile — aviation outlets, freight trade press and local Yorkshire media all covered it — and it explains the concentration of his 768 parliamentary contributions around transport, which accounts for more than 60 of his 73 debate topics. His most recent votes reflect the ministerial role directly: he backed the Railways Bill at third reading, supporting rail renationalisation under Great British Railways, and voted against opposition amendments seeking statutory passenger service standards and fixed railcard protections for veterans, following the government line that Great British Railways should set those standards itself.

His participation rate of 81% sits broadly in line with the Commons average, and his voting record is a clean 100% party alignment — no rebel votes in his parliamentary career to date. Stance data show he votes strongly for progressive taxation and workers' rights, and his personal deviations from Labour's average are most visible on assisted dying, where he sits 31 points above his party in supporting access and 23 points below on restrictions, making him a notably more permissive voice on that issue than the typical Labour MP. He is also slightly more cautious than his party average on welfare expansion.

His constituency news coverage over the past 90 days spans 91 articles, with crime and transport generating the most pieces but low average sentiment scores, while economy and jobs coverage skews more positively. He holds no select committee seats, which is standard for ministers. Because he joined Parliament only in July 2023 via by-election, his full voting record covers a relatively short period — the stance percentages above reflect that limited base.