Margaret Ferrier, Scottish nationalist MPs and Boris Johnson supporters have been accused of organising a "grubby backroom deal" to prevent Ferrier from being suspended from the House of Commons and facing a by-election.
Labour shadow Scotland Secretary Ian Murray claimed that Ferrier worked with other MPs to prevent a recall petition from being sparked.
The Commons was expected to decide on the standards committee's recommendation that Ferrier receive a 30-day ban from the House of Commons on Thursday afternoon.