Overview
- Starmer told the Camden New Journal he had reflected over the summer and decided Tuesday that now was the right time to leave the Commons to focus on international affairs and work on violence against women and girls.
- His resignation formally triggers a by-election in Holborn and St Pancras that will require the local Labour party to select a candidate ahead of a date to be set by Parliament.
- Green Party leader Zack Polanski has declared he will stand in the contest, making the Greens the principal outside challenger to Labour in a seat where Labour’s 2024 majority fell sharply.
- Independent figures who polled strongly in 2024, notably Andrew Feinstein, and other smaller parties are already positioning to split the left‑of‑centre vote and turn the seat into a competitive test.
- Starmer’s exit comes after his July resignation as prime minister and hands Andy Burnham an early public measure of his government’s standing in London where local results this year weakened Labour’s dominance.