Labour whips warn party’s MPs not to try to amend bills or disagree in public

Exclusive: Private message from whips aims to crack down on dissent, telling MPs to speak with one voice'

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Labour MPs have been warned that they must not put down any amendments on government bills and must resolve disagreements privately with ministers, in a crackdown on discipline in parliament.

In a private message, seen by the Guardian, Labour whips told MPs that they could no longer act as if they were in opposition and said amendments suggested a lack of trust in the government. The message said MPs should be speaking with one voice" in public.