Labour MP Catherine West has threatened to personally gather the signatures needed to trigger a leadership contest by Monday unless the cabinet launches a challenge against the current leader. West's ultimatum signals growing discontent within Labour's ranks over the party's recent electoral losses.

The Guardian's live politics coverage indicates Labour suffered setbacks across multiple regions in recent elections, with the party losing ground in different directions. West's intervention suggests cabinet ministers have so far resisted calls to mount a formal leadership challenge, forcing backbenchers to consider forcing the issue themselves.

Labour party rules require a set number of MP signatures to trigger a leadership election. West's willingness to collect signatures independently represents an escalation in internal party pressure. Her Monday deadline puts immediate pressure on senior figures to act or face a grassroots rebellion from their own benches.

The timing of West's statement coincides with Gordon Brown's appointment as a special envoy on global finance. Brown, the former prime minister and Labour stalwart, takes the position to advise on international financial cooperation aimed at boosting the country's security and resilience. The appointment, announced by Number 10, suggests efforts to shore up party credentials on economic management despite electoral struggles.

West's move reflects broader Labour anxieties about electoral viability. The party's losses across different regions suggest a fragmented voter coalition. By threatening to force a leadership contest herself, West bypasses what appears to be cabinet reluctance to formally challenge the leader, potentially exposing divisions between frontbench and backbench opinion on the party's direction.

The looming Monday deadline creates pressure for rapid developments. Either the cabinet must act within days, or West proceeds to collect signatures independently, formally triggering the contest mechanism. Either scenario signals serious instability within Labour's leadership structure.

THE BOTTOM LINE: Labour faces imminent internal turmoil as backbenchers threaten to force a leadership election that the cabinet has so far avoided.