uk labour
Kevin Lindsay of the Aslef train drivers' union says forcing the shadow minister out was a "step too far".
Long-awaited Forde inquiry says the party was unable to operate as an effective opposition due to "deep rooted" divisions.
Chris Bryant, known for his scathing attacks on the Conservatives, ripped into the prime minister for upending parliamentary procedure.
The Labour leader said there was "absolutely no basis" for a pact with a party that wants to "break up" the UK.
The MP was allowed to keep his job as a foreign office minister before going on to become deputy chief whip.
"This feels like the beginning of the end," Rory Stewart tweeted.
Opinion polls suggest Labour is on course to reclaim the Red Wall seat, but people are far from convinced by the party leader.
It follows reports that Boris Johnson might not replace Lord Geidt after his unexpected resignation this week.
'This is a shambles and it is shameful and the home secretary has no one but herself to blame,' Yvette Cooper said.
The Labour leader said he was "absolutely confident" he had not broken any rules.