Former Labour MP Fiona Onasanya could now face a by-election after losing an appeal to against her conviction for perverting the course of justice.
Onasanya, who currently sits as an independent MP after being expelled from the Labour Party in December, was not required to resign her seat as her sentence was less than 12 months.
The Peterborough MP represented herself at the Royal Courts of Justice today to challenge the verdict that she had mislead investigators by providing a fake name in relation to a speeding incident.
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Rejecting Onasanya’s appeal, Sir Brian Leveson said: "It is a tragedy that she has damaged, probably irreparably, a promising political career, but there is absolutely no basis for challenging her conviction."
Onasanya refused to comment after the hearing.
'She must do the decent thing and go'
Onsasanya has resisted calls to resign as an MP but could now face a by-election if at least ten per cent of constituents sign a recall petition.
The recall petition procedure could not be started until Onasanya’s appeal process came to an end, but John Bercow confirmed today that the process had been triggered.
A Labour spokesperson said: "Labour has consistently called on Fiona Onasanya to stand down as an MP ever since she was found guilty last December.
"Her refusal to do so continues to let the voters of Peterborough down. She must now do the decent thing and go.
"If she refuses to stand down, Labour will actively support local residents in their efforts to trigger a by-election through a recall petition."