Labour suspended the whip from Mr Gwynne in February as well as fellow MP Oliver Ryan, who was elected in July, over his involvement in the “Trigger Me Timbers” WhatsApp group, which contains members from Tameside and Stockport councils.
Mr Gwynne was sacked as a minister and suspended from the Labour Party earlier this month after the emergence of offensive messages in a WhatsApp group.
Mr Gwynne, who is now sitting as the independent MP for Gorton and Denton, is listed among the allegations under investigation by the commissioner, specifically for "actions causing significant damage to the reputation of the House as a whole, or of its Members generally" accordingthe parliament’s website.
The party has also suspended 11 Labour councillors, including Mr Gwynne’s wife, for being part of the WhatsApp group.
Andrew Gwynne was suspended from the Labour Party after the emergence of ‘racist’ and ‘sexist’ messages in a WhatsApp group.