Who is putting pressure on the PM?

Keir Starmer's welfare reforms hang by a thread with hours to go until a vote that could define his premiership.

- Kiran Stacey

The prime minister was almost certainly heading for his first Commons defeat in government before the last-minute deal reached last week with rebels. However, the result remains uncertain, with a series of Labour MPs warning that they cannot back the bill in its current form. Here are six of the Labour figures - inside and outside parliament - whose voices are being listened to.

Meg Hillier MP for Hackney South and Shoreditch As head of the cross-party Treasury select committee, Hillier's role is usually that of impartial inquisitor rather than rebel. So, her name as the first signatory on last week's wrecking amendment gave the rebellion the momentum to force government concessions. It was unsurprising, therefore, that Hillier was one of the small group of MPs who thrashed out a compromise deal last week. Her support for that deal was vital in persuading the government that it had done enough to sway other moderates. But her questions in the House of Commons yesterday over the details of the concessions reflected an unease about the details, shared by many colleagues.