Some Labour MPs cheered in the Commons as the Government officially triggered a by-election in Boris Johnson's vacant parliamentary seat.
It comes just days after the ex-PM dramatically announced his decision to quit as an MP ahead of the publication of a report into whether he misled Parliament over the Partygate scandal.
Another MP and Johnson ally Nigel Adams also resigned his seat paving the way for a double by-election test for Rishi Sunak just days before the summer recess.