Yasmin Alibhai-Brown has said the UK is almost facing its worst crisis since the WWII, after Theresa May announced MPs will vote on her Brexit deal on 12 March.
The columnist called for a “government of national unity” after MPs left Labour over allegations of racism and anti-semitism MPs left the Conservative party over Brexit.
She told talkRADIO’s Matthew Wright: “I find it astonishing that the breakaway group expects to carry on without being tested.
“We are almost in the worst crisis since the Second World War – what we need is for politicians to be grown up and have government of national unity.
“Who I am really angry with most of all is Chuka [Umunna] because he had the chance to lead the Labour party. Who knows what would have happened had he won?”
'The rules need to change'
Ms Alibhai-Brown also called on disgraced MP Fiona Onasanya to face a by-election after she was released on Tuesday, after serving a month of her sentence for perverting the course of justice.
The former Labour MP for Peterborough was jailed for three months at the Old Bailey for lying to avoid a speeding charge.
“Considering it was a three-month sentence, and she did not knock anyone about, I suppose it makes sense,” she said.
“But of course it is not good when people already think everything in the system is dodgy. More people will think that this has got something to do with the vote.
“The rules need to change but what you don’t want are these vigilantes who go after MPs and threaten to deselect them.
“But if you are not representing the party then you need to stand for election. That should be happening.”