Great Grimsby and Cleethorpes.

A 99.7% party-line voter with one notable exception: Onn broke with Labour in December 2024 to vote against introducing proportional representation for UK elections -- a rare cross-party rebel moment that puts her to Labour's right on constitutional reform. Her recent news coverage is largely positive, centred on local advocacy: opposing a bus lane extension she warned would harm Cleethorpes businesses, welcoming playground funding she had personally pushed for, and championing road safety reform after a local tragedy. Grimsby Live covers her regularly and the tone is broadly favourable.

Her parliamentary participation sits at 74%, modestly below the Commons average. She votes consistently for progressive taxation and workers' rights, and has not once backed positions favouring employer NI cuts or Lords scrutiny powers. Her stance scores show she is notably tougher on crime than the Labour average -- 29 percentage points above it -- and more willing than most Labour MPs to override Lords amendments. Her 203 contributions across 128 debates are spread across economy and jobs, energy, local government, social care, and the environment, reflecting both her constituency's industrial character and her seat on the Energy Security and Net Zero Committee.

That committee role helps explain the volume of energy-related speeches: Grimsby and Cleethorpes sits at the heart of the Humber's offshore wind and hydrogen industries, and Onn has consistently framed energy policy in terms of local jobs. She was also the MP for Great Grimsby from 2015 to 2019 before losing the seat, giving her deeper local roots than most first-term MPs. Voting and speech data are available from July 2024; news sentiment data covers the past 90 days.