Former Conservative party whip Chris Pincher resigned his seat today after losing his appeal against a proposed eight-week Commons suspension for drunkenly groping two men.
If MPs had approved the recommendation to suspend him (which is usually a formality), it would have resulted in a recall petition which could have led to a by-election.
This now means the government will face its ninth by-election since Rishi Sunak became prime minister; in Tamworth this time.